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Athiel Y, Jouannic JM, Lépine M, Maillet C, de Saint Denis T, Larghero J, Guilbaud L. Role of Amniotic Fluid Toxicity in the Pathophysiology of Myelomeningocele: A Narrative Literature Review. Prenat Diagn 2024; 44:1530-1535. [PMID: 39370541 DOI: 10.1002/pd.6681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 09/06/2024] [Accepted: 09/23/2024] [Indexed: 10/08/2024]
Abstract
Myelomeningocele is a birth defect whose clinical manifestations are due both to incomplete neural tube closure and the progressive destruction of exposed neuroepithelium during pregnancy. Two hypotheses have been formulated to explain the spinal cord damage in utero: mechanical trauma and chemical factors. The objective of this review was to summarize the current insights about the potential role of amniotic fluid in spinal cord damage in myelomeningocele. Numerous histological and clinical data on animals and humans strongly suggest a progressive degeneration of neural tissue including loss of neural cells, astrogliosis, inflammation, and loss of normal architecture. However, few data have been published about the direct toxicity of amniotic fluid in this neural degeneration, including the potentially toxic effect of meconium. Finally, the chemical and cellular modifications of amniotic fluid composition in myelomeningocele could reflect both the process (toxic effect of meconium) and the consequences of neuroepithelium destruction (release of neural cells). Fetal surgery not only stops the leakage of the cerebrospinal fluid but also reduces the toxic effect of amniotic fluid by restoring the intrauterine environment. Identification of amniotic fluid neurotoxic factors could lead to the development of therapeutic agents designed to protect spinal tissue and improve fetal myelomeningocele outcomes.
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Affiliation(s)
- Yoann Athiel
- Department of Fetal Medicine, Armand Trousseau Hospital, AP-HP, DMU ORIGYNE, National Reference Center for Rare Disease: Spin@, Sorbonne University, Paris, France
- Stem Cell Biotechnologies Unit, INSERM 976, CIC-BT, AP-HP, Saint-Louis Hospital, Université Paris Cité, Paris, France
| | - Jean-Marie Jouannic
- Department of Fetal Medicine, Armand Trousseau Hospital, AP-HP, DMU ORIGYNE, National Reference Center for Rare Disease: Spin@, Sorbonne University, Paris, France
- Working Group Spina Bifida and Other Dysraphisms, European Reference Network ITHACA, Paris, France
| | - Matthieu Lépine
- Stem Cell Biotechnologies Unit, INSERM 976, CIC-BT, AP-HP, Saint-Louis Hospital, Université Paris Cité, Paris, France
| | - Corentin Maillet
- Department of Fetal Medicine, Armand Trousseau Hospital, AP-HP, DMU ORIGYNE, National Reference Center for Rare Disease: Spin@, Sorbonne University, Paris, France
- Stem Cell Biotechnologies Unit, INSERM 976, CIC-BT, AP-HP, Saint-Louis Hospital, Université Paris Cité, Paris, France
| | - Timothée de Saint Denis
- Department of Pediatric Orthopedic and Reconstructive Surgery, Armand Trousseau Hospital, AP-HP, Sorbonne University, Paris, France
| | - Jérôme Larghero
- Stem Cell Biotechnologies Unit, INSERM 976, CIC-BT, AP-HP, Saint-Louis Hospital, Université Paris Cité, Paris, France
| | - Lucie Guilbaud
- Department of Fetal Medicine, Armand Trousseau Hospital, AP-HP, DMU ORIGYNE, National Reference Center for Rare Disease: Spin@, Sorbonne University, Paris, France
- Stem Cell Biotechnologies Unit, INSERM 976, CIC-BT, AP-HP, Saint-Louis Hospital, Université Paris Cité, Paris, France
- Working Group Spina Bifida and Other Dysraphisms, European Reference Network ITHACA, Paris, France
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Hawes J, Gonzalez-Manteiga A, Murphy KP, Sanchez-Petidier M, Moreno-Manzano V, Pathak B, Lampe K, Lin CY, Peiro JL, Oria M. Noggin-Loaded PLA/PCL Patch Inhibits BMP-Initiated Reactive Astrogliosis. Int J Mol Sci 2024; 25:11626. [PMID: 39519177 PMCID: PMC11545872 DOI: 10.3390/ijms252111626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2024] [Revised: 10/18/2024] [Accepted: 10/25/2024] [Indexed: 11/16/2024] Open
Abstract
Myelomeningocele (MMC) is a congenital birth defect of the spine and spinal cord, commonly treated clinically through prenatal or postnatal surgery by repairing the unclosed spinal canal. Having previously developed a PLA/PCL polymer smart patch for this condition, we aim to further expand the potential therapeutic options by providing additional cellular and biochemical support in addition to its mechanical properties. Bone morphogenetic proteins (BMPs) are a large class of secreted factors that serve as modulators of development in multiple organ systems, including the CNS. We hypothesize that our smart patch mitigates the astrogenesis induced, at least partly, by increased BMP activity during MMC. To test this hypothesis, neural stem or precursor cells were isolated from rat fetuses and cultured in the presence of Noggin, an endogenous antagonist of BMP action, with recombinant BMPs. We found that the developed PLA/PCL patch not only serves as a biocompatible material for developing neural stem cells but was also able to act as a carrier for BMP-Notch pathway inhibitor Noggin, effectively minimizing the effect of BMP2 or BMP4 on NPCs cultured with the Noggin-loaded patch.
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Affiliation(s)
- James Hawes
- Center for Fetal and Placental Research, Cincinnati Children’s Hospital Medical Center (CCHMC), Cincinnati, OH 45229, USA; (J.H.); (K.P.M.); (B.P.); (K.L.); (J.L.P.)
| | - Ana Gonzalez-Manteiga
- Department of Radiation Oncology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA;
| | - Kendall P. Murphy
- Center for Fetal and Placental Research, Cincinnati Children’s Hospital Medical Center (CCHMC), Cincinnati, OH 45229, USA; (J.H.); (K.P.M.); (B.P.); (K.L.); (J.L.P.)
| | - Marina Sanchez-Petidier
- Neuronal and Tissue Regeneration Laboratory, Prince Felipe Research Institute, 46512 Valencia, Spain; (M.S.-P.); (V.M.-M.)
- Neuronal Circuits and Behaviour Group, Hospital Nacional de Parapléjicos, Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
| | - Victoria Moreno-Manzano
- Neuronal and Tissue Regeneration Laboratory, Prince Felipe Research Institute, 46512 Valencia, Spain; (M.S.-P.); (V.M.-M.)
| | - Bedika Pathak
- Center for Fetal and Placental Research, Cincinnati Children’s Hospital Medical Center (CCHMC), Cincinnati, OH 45229, USA; (J.H.); (K.P.M.); (B.P.); (K.L.); (J.L.P.)
| | - Kristin Lampe
- Center for Fetal and Placental Research, Cincinnati Children’s Hospital Medical Center (CCHMC), Cincinnati, OH 45229, USA; (J.H.); (K.P.M.); (B.P.); (K.L.); (J.L.P.)
| | - Chia-Ying Lin
- Convergent Bioscience and Technology Institute, Department of Biomedical Engineering and Informatics, Indiana University, Indianapolis, IN 46202, USA;
| | - Jose L. Peiro
- Center for Fetal and Placental Research, Cincinnati Children’s Hospital Medical Center (CCHMC), Cincinnati, OH 45229, USA; (J.H.); (K.P.M.); (B.P.); (K.L.); (J.L.P.)
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA
| | - Marc Oria
- Center for Fetal and Placental Research, Cincinnati Children’s Hospital Medical Center (CCHMC), Cincinnati, OH 45229, USA; (J.H.); (K.P.M.); (B.P.); (K.L.); (J.L.P.)
- Department of Radiation Oncology, University of Cincinnati College of Medicine, Cincinnati, OH 45219, USA;
- University of Cincinnati Cancer Center (UCCC), Cincinnati, OH 45219, USA
- University of Cincinnati Brain Tumor Center (BTC), Cincinnati, OH 45219, USA
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Mitts MD, Whitehead W, Corroenne R, Johnson R, Donepudi R, Espinoza J, Shamshirsaz AA, Sanz Cortes M, Belfort MA, Nassr AA. Fetal surgery for open neural tube defect with severe ventriculomegaly. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2024; 64:65-70. [PMID: 38224552 DOI: 10.1002/uog.27585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 11/14/2023] [Accepted: 01/07/2024] [Indexed: 01/17/2024]
Abstract
OBJECTIVE Prenatal open neural tube defect (ONTD) repair is performed to decrease the risk of needing treatment for hydrocephalus after birth and to preserve motor function. Some centers may not consider patients to be candidates for surgery if severe ventriculomegaly is present and there is no expected benefit in risk for hydrocephalus treatment. This study sought to compare the postnatal outcome of fetuses with ONTD and severe ventriculomegaly (ventricular width ≥ 15 mm) that underwent prenatal repair with the outcome of fetuses with severe ventriculomegaly that underwent postnatal repair and fetuses without severe ventriculomegaly (< 15 mm) that underwent prenatal repair. METHODS This was a retrospective study of fetuses with ONTD that underwent prenatal or postnatal repair between 2012 and 2021 at a single institution. The cohort was divided into two groups based on preoperative fetal ventricular size: those with severe ventriculomegaly (ventricular width ≥ 15 mm) and those without severe ventriculomegaly (< 15 mm). Fetal ventricular size was measured by magnetic resonance imaging before surgery using the standardized approach and the mean size of the left and right ventricles was used for analysis. Motor function of the lower extremities was assessed at the time of referral by ultrasound and if flexion-extension movements of the ankle were seen it was considered as preserved S1 motor function. Postnatal outcomes, including motor function of the lower extremities at birth and the need for a diversion procedure for hydrocephalus treatment during the first year after birth, were collected and compared between groups. Multivariate regression analysis was used to adjust for potential confounders. RESULTS In this study, 154 patients were included: 145 underwent fetal surgery (101 fetoscopic and 44 open hysterotomy) and nine with severe ventriculomegaly underwent postnatal repair. Among the 145 patients who underwent fetal surgery, 22 presented with severe ventriculomegaly. Fetuses with severe ventriculomegaly at referral that underwent prenatal repair were significantly more likely to need hydrocephalus treatment by 12 months after birth than those without severe ventriculomegaly (61.9% vs 28.9%, P < 0.01). However, motor function assessment at birth was similar between both prenatal repair groups (odds ratio, 0.92 (95% CI, 0.33-2.59), P = 0.88), adjusted for the anatomical level of the lesion. The prenatal repair group with severe ventriculomegaly had better preserved motor function at birth compared to the postnatal repair group with severe ventriculomegaly (median level, S1 vs L3, P < 0.01; proportion with S1 motor function, 68.2% vs 11.1%, P < 0.01). Fetuses with severe ventriculomegaly that underwent prenatal repair had an 18.9 (95% CI, 1.2-290.1)-times higher chance of having intact motor function at birth, adjusted for ethnicity, presence of club foot at referral and gestational age at delivery, compared with the postnatal repair group. There was no significant difference in the need for hydrocephalus treatment in the first year after birth between prenatal and postnatal repair groups with severe ventriculomegaly (61.9% vs 87.5%, P = 0.18). CONCLUSIONS Although fetuses with ONTD and severe ventriculomegaly do not seem to benefit from fetal surgery in terms of postnatal hydrocephalus treatment, there is an increased chance of preserved motor function at birth. Results from this study highlight the benefit of prenatal ONTD repair for cases with severe ventriculomegaly at referral to preserve motor function. © 2024 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- M D Mitts
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - W Whitehead
- Department of Neurosurgery, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - R Corroenne
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - R Johnson
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - R Donepudi
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - J Espinoza
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - A A Shamshirsaz
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M Sanz Cortes
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M A Belfort
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - A A Nassr
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
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Kahle KT, Klinge PM, Koschnitzky JE, Kulkarni AV, MacAulay N, Robinson S, Schiff SJ, Strahle JM. Paediatric hydrocephalus. Nat Rev Dis Primers 2024; 10:35. [PMID: 38755194 DOI: 10.1038/s41572-024-00519-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/11/2024] [Indexed: 05/18/2024]
Abstract
Hydrocephalus is classically considered as a failure of cerebrospinal fluid (CSF) homeostasis that results in the active expansion of the cerebral ventricles. Infants with hydrocephalus can present with progressive increases in head circumference whereas older children often present with signs and symptoms of elevated intracranial pressure. Congenital hydrocephalus is present at or near birth and some cases have been linked to gene mutations that disrupt brain morphogenesis and alter the biomechanics of the CSF-brain interface. Acquired hydrocephalus can develop at any time after birth, is often caused by central nervous system infection or haemorrhage and has been associated with blockage of CSF pathways and inflammation-dependent dysregulation of CSF secretion and clearance. Treatments for hydrocephalus mainly include surgical CSF shunting or endoscopic third ventriculostomy with or without choroid plexus cauterization. In utero treatment of fetal hydrocephalus is possible via surgical closure of associated neural tube defects. Long-term outcomes for children with hydrocephalus vary widely and depend on intrinsic (genetic) and extrinsic factors. Advances in genomics, brain imaging and other technologies are beginning to refine the definition of hydrocephalus, increase precision of prognostication and identify nonsurgical treatment strategies.
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Affiliation(s)
- Kristopher T Kahle
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
- Broad Institute of Harvard and MIT, Cambridge, MA, USA.
- Department of Neurosurgery and Division of Genetics and Genomics, Boston Children's Hospital, Boston, MA, USA.
| | - Petra M Klinge
- Department of Neurosurgery, Rhode Island Hospital, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Jenna E Koschnitzky
- Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Abhaya V Kulkarni
- Division of Paediatric Neurosurgery, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Nanna MacAulay
- Department of Neuroscience, University of Copenhagen, Copenhagen, Denmark
| | - Shenandoah Robinson
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Paediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Steven J Schiff
- Department of Neurosurgery, Yale University, New Haven, CT, USA
- Department of Epidemiology of Microbial Diseases, Yale University, New Haven, CT, USA
| | - Jennifer M Strahle
- Department of Neurosurgery, Washington University School of Medicine, Saint Louis, MO, USA
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Benabdderrahmane K, Stirnemann J, Ramtani S, Falentin-Daudré C. Development of a double-layer electrospun patch as a potential prenatal treatment for myelomeningocele. Wound Repair Regen 2024; 32:246-256. [PMID: 37957136 DOI: 10.1111/wrr.13123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 09/05/2023] [Accepted: 10/12/2023] [Indexed: 11/15/2023]
Abstract
Myelomeningocele (MMC) is a congenital defect of the spine characterised by meningeal and spinal cord protrusion through the open vertebral arches. This defect causes progressive prenatal damage of the spinal cord, leading to lifelong handicap. Although mid-trimester surgical repair may reduce part of the handicap, an earlier and less invasive approach would further improve the prognosis, possibly minimising maternal and foetal risks. Several studies have proposed an alternative approach to surgical repair by covering the defect with a patch and protecting the exposed neural tissue. Our study aims to elaborate on a waterproof and biodegradable bioactive patch for MMC prenatal foetal repair. We developed a double-layer patch that can provide a waterproof coverage for the spinal cord, with a bioactive side, conducive to cell proliferation, and an antiadhesive side to avoid its attachment to the medulla.
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Affiliation(s)
- K Benabdderrahmane
- LBPS/CSPBAT, UMR CNRS 7244, Institut Galilée, Université Sorbonne Paris Nord, Villetaneuse, France
| | - J Stirnemann
- Obstetrics and Maternal-Fetal Medicine, Hôpital Necker Enfants Malades, AP-HP, Paris, France
- EA7328 Institut Imagine & Université de Paris-Cité, Paris, France
| | - S Ramtani
- LBPS/CSPBAT, UMR CNRS 7244, Institut Galilée, Université Sorbonne Paris Nord, Villetaneuse, France
| | - C Falentin-Daudré
- LBPS/CSPBAT, UMR CNRS 7244, Institut Galilée, Université Sorbonne Paris Nord, Villetaneuse, France
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Martins EJ, Serrão P, Leonardi-Figueiredo MM, Ravanelli LS, Serenza FS, Mattiello S, Aagaard P, Mattiello-Sverzut A. Isokinetic arm and shoulder muscle torque-velocity characteristics in mobility limited children and adolescents with spina bifida. Physiother Theory Pract 2024; 40:962-972. [PMID: 36482746 DOI: 10.1080/09593985.2022.2150529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 10/28/2022] [Accepted: 11/14/2022] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Propulsive wheelchair capacity may be influenced by arm muscle performance.Objectives: To determine whether children and adolescent wheelchair-users with spina bifida show reduced arm muscle strength compared to their typically developing peers and to compare muscle strength data obtained by isokinetic and handheld dynamometry (HHD). METHODS Participants (mean age 12.5 ± 2.5 years) were assigned to spina bifida (SB; n = 11) or control (n = 22) groups. Isokinetic dynamometry was used to measure peak torque (PT) during dynamic (60°s-1 and 120°s-1) and isometric strength testing (MVIC) for shoulder and elbow flexors and extensors. HHD was used to measure MVIC of the same muscle groups. RESULTS SB showed reduced isokinetic PT for shoulder extensors at 60°s-1 and 120°s-1, shoulder flexor MVIC, and elbow flexors at 60°s-1 and MVIC; higher PT for shoulder flexors and elbow flexors at 120°s-1; and decreased MVIC for elbow flexors but not extensors compared to controls when assessed by HHD. The SB and control groups showed strong positive correlations between MVIC data obtained by the two devices for all muscle groups (r ≥ 0.81; p < .01), except for shoulder flexor MVIC in controls (r = 0.68; p < .01). CONCLUSION SB presented reduced levels of dynamic slow-speed and isometric shoulder and elbow muscle strength and greater dynamic high-speed shoulder and elbow flexor strength than controls possibly due to the exposure to self-sustained wheelchair ambulation. Exercise-based intervention protocols to increase slow-speed arm muscle strength should be considered in youth with SB. Strong positive correlations observed between muscle strength assessed by isokinetic dynamometry and HHD support the use of HHD in this clinical population.
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Affiliation(s)
- Emanuela J Martins
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Paula Serrão
- Department of Physiotherapy, Federal University of São Carlos, São Carlos, Brazil
| | | | - Letícia S Ravanelli
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Felipe S Serenza
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Stela Mattiello
- Department of Physiotherapy, Federal University of São Carlos, São Carlos, Brazil
| | - Per Aagaard
- Institute of Sports Science and Clinical Biomechanics, Muscle Physiology and Biomechanics Research Unit, University of Southern Denmark, Odense, Denmark
| | - Ana Mattiello-Sverzut
- Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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Bardill JR, Laughter MR, Anderson JB, Hoffman H, Gilani A, Koster MI, Marwan AI. Immunohistochemical and Histopathological Characterization of Spina Bifida Defect Tissues Removed After Prenatal and Postnatal Surgical Repair. Fetal Pediatr Pathol 2024; 43:225-233. [PMID: 38634787 DOI: 10.1080/15513815.2024.2326834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 02/28/2024] [Indexed: 04/19/2024]
Abstract
Background: Myelomeningocele or spina bifida is an open neural tube defect that is characterized by protrusion of the meninges and the spinal cord through a deformity in the vertebral arch and spinous process. Myelomeningocele of post-natal tissue is well described; however, pre-natal tissue of this defect has no known previous histologic characterization. We compared the histology of different forms of pre-natal myelomeningocele and post-natal myelomeningocele tissue obtained via prenatal intrauterine and postnatal surgical repairs. Methods: Pre-and post-natal tissues from spina bifida repair surgeries were obtained from lipomyelomeningocele, myeloschisis, and myelomeningocele spina bifida defects. Tissue samples were processed for H&E and immunohistochemical staining (KRT14 and p63) to assess epidermal and dermal development. Results: Prenatal skin near the defect site develops with normal epidermal, dermal, and adnexal structures. Within the grossly cystic specimens, histology shows highly dense fibrous connective tissue with complete absence of a normal epidermal development with a lack of p63 and KRT14 expression. Conclusion: Tissues harvested from prenatal and postnatal spina bifida repair surgeries appear as normal skin near the defect site. However, cystic tissues consist of highly dense fibrous connective tissue with complete absence of normal epidermal development.
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Affiliation(s)
- James R Bardill
- Department of Surgery, Division of Pediatric Surgery, University of CO Denver Anschutz Medical Campus, Aurora, CO, USA
| | - Melissa R Laughter
- University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA
| | - Jaclyn B Anderson
- Department of Pathology, School of Medicine, Stanford University, Stanford, CA, USA
| | - Hilary Hoffman
- Department of Surgery, Division of Pediatric Surgery, University of CO Denver Anschutz Medical Campus, Aurora, CO, USA
| | - Ahmed Gilani
- Department of Pathology, University of Colorado Denver Anschutz Medical Campus, Aurora, CO, USA
| | - Maranke I Koster
- Department of Biochemistry and Molecular Biology, Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | - Ahmed I Marwan
- Department of Surgery, Division of Pediatric Surgery, University of MO School of Medicine, Columbia, MO, USA
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Dias BLS, de Rodrigues MCC, Duarte JLMB. Quality of life of families and siblings of children and adolescents with meningomyelocele. Child Care Health Dev 2024; 50:e13246. [PMID: 38483061 DOI: 10.1111/cch.13246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/18/2023] [Accepted: 02/08/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Children with meningomyelocele may require continuous care. Consequently, there is a risk for caregiver burden and impact on family quality of life (QoL), including siblings' QoL. Some studies analysed caregivers' burden and family QoL separately. However, none of these studies evaluated siblings' QoL and the associations between these three dimensions. This study investigated the associations between caregivers' burden, family QoL and siblings' QoL in Brazilian families of children with meningomyelocele and its correlations with sociodemographic, functional and clinical variables. Siblings' QoL was specifically assessed using as a parameter the QoL of typically developed Brazilian children. METHODS One hundred and fifty families, 150 caregivers and 68 siblings completed the Family Quality of Life Scale, Burden Interview, KIDSCREEN-27 Child and Adolescent Version and Parents Version questionnaires. RESULTS Most families and caregivers reported a high family QoL and a low caregiver burden. Family QoL was significantly lower as caregivers' burden increased. Caregiver's burden was significantly lower with increasing family QoL levels. Self-reported siblings' QoL was significantly worse than that of typically developed peers. There were no significant differences between self and parent-reported siblings' QoL. Self-reported siblings' QoL was significantly worse as their age increased and better with increasing family QoL levels. Parent-reported siblings' QoL was significantly worse with increasing levels of caregiver's burden and significantly better as family QoL increased. There were no significant associations with functional and clinical variables. CONCLUSIONS Despite the cross-sectional nature of the available data precludes any statements of causality, our results reinforce the relevance of knowing the factors that influence the QoL of families and siblings of children and adolescents with meningomyelocele and the relevance of actions aimed at reducing caregivers' burden, improving family QoL and meeting siblings' individual needs. Future multicenter studies may validate the generalizability of our findings.
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Affiliation(s)
- Bruno Leonardo Scofano Dias
- SARAH Network of Rehabilitation Hospitals; Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | | | - José Luiz Muniz Bandeira Duarte
- Department of Pediatrics, Faculty of Medical Sciences, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
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Adebayo BO, Tiamiyu LO, Adetunmbi B, Adegboyega RO, Etagar CO, Kanu OO, Bankole O. Female monozygotic twins with sacral myelomeningocele. Surg Neurol Int 2023; 14:234. [PMID: 37560560 PMCID: PMC10408598 DOI: 10.25259/sni_339_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/21/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Concurrent myelomeningocele in twins is a rare clinical presentation, only reported twice in Nigeria. CASE DESCRIPTION We present a set of identical female twins from Nigeria. Both twins were females that presented at 3 years with low back swelling since birth, associated with bisphincteric dysfunction but normal motor and sensory functions in the lower extremities. They had repair of myelomeningocele 2 months after presentation and there was no new deficit postoperatively.There was no family history of neural tube defects and it would have been good to do genetic studies in this case but we do not have facilities for such. CONCLUSION This is the first reported case of identical twins with concurrent myelomeningocele and preserved motor functions in the lower limbs in Nigeria and West Africa.
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Affiliation(s)
| | | | | | | | | | - Okezie Obasi Kanu
- Department of Surgery, College of Medicine, University of Lagos/Lagos University Teaching Hospital, Lagos, Nigeria
| | - Olufemi Bankole
- Department of Surgery, College of Medicine, University of Lagos/Lagos University Teaching Hospital, Lagos, Nigeria
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Caceres A, Jimenez-Chaverri AL, Alpizar-Quiros PA, Wong-McClure R. Pre and postnatal care characteristics and management features of children born with myelomeningocele in the post-folate fortification era of staple foods in Costa Rica (2004-2022). Childs Nerv Syst 2023; 39:1755-1764. [PMID: 37129604 DOI: 10.1007/s00381-023-05951-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/05/2023] [Indexed: 05/03/2023]
Abstract
PURPOSE To describe the clinical characteristics of pre- and postnatal care of children born with myelomeningocele in Costa Rica from 2004 to 2022 after the introduction of mandatory fortification of four major staple foods, describing the clinical features of this cohort including the size of the meningomyelocele, neurological level, presence of symptomatic Chiari II at birth, kyphosis, and the severity of hydrocephalus requiring cerebrospinal fluid (CSF) shunting. These results were compared against the pre-fortification historical data to determine favorable outcomes from this health policy. METHODS We performed a retrospective review of the clinical records of patients with myelomeningocele at the spina bifida clinic from the National Children's Hospital of Costa Rica who were born between 2004 and 2022, a period when staple food fortification was implemented in the country for four food staples (wheat and corn flour, rice, and dairy products). Pre and postnatal care data pertaining to the number of obstetric ultrasound studies, the trimester in which they were performed, the detection of myelomeningocele and associated hydrocephalus, gestational age and route of delivery, neurological level, myelomeningocele defect size, associated kyphosis and symptomatic Chiari II malformation at birth, time periods of myelomeningocele repair, and CSF shunting were examined. A descriptive comparative frequency analysis between myelomeningocele (MMC) defect size, CSF shunt insertion, symptomatic Chiari II, and kyphosis between the different functional levels was performed with the estimation of the Fisher's exact chi-square test by contingency tables, and 0.05 was set as significance level. Additionally, the postnatal features of this cohort were compared against pre-fortification historical data obtained from 100 live-born patients between 1995 and 1996. RESULTS A total of 215 patients that were live born between 2004 and 2022 were eligible for analysis with a follow up ranging from 1 to 19 years (median follow up: 7.9 years). Among 99.1% of the mothers of patients who had prenatal consultations, 95.8% had an average of 3.8 obstetric ultrasound studies which led to a 59% prenatal detection rate of myelomeningocele. The pre and post fortification features showed a male/female ratio that changed from 0.92 to 1.25 respectively. Among these newborns, there was an increase from 54 to 64% cesarean sections as method for delivery. Only 26% of the pre fortification patients had the MMC defect repaired in the first 24 h, 32% from 24 to 72 h, 20% from 72 h to 1 week, and 22% later than 10 days respectively which deeply contrasted with the post fortification cohort where 7.5% had the MMC defect repaired in less than 8 h, 12.2% from 8 to 12 h, 66.5% 12-24 h, and 12.7% from 24 to 48 h and 1% later than 48 h, respectively (P < 0.01). Regarding the post fortification myelomeningocele anatomic and functional characteristics, defect size was measured as less than 3 cm in 7% of cases, 3 to 5 cm in 50% of cases, 5 to 7 cm in 42% of cases, and greater than 7 cm in 1% of cases. Thirteen percent of the cases had paraplegia due to a thoracic level, 10% had a high lumbar level, 58% had a middle lumbar level, 13% a lower lumbar level, and 6% only sacral compromise. When the data from the pre and post fortification cohorts were adjusted and compared, there was a reduction from thoracic/high lumbar cases from 26 to 23% (P < 0.56), with an increase of middle lumbar cases from 43 to 58% and a reduction from 25 to 13% of low lumbar cases (P < 0.01) while there was no change in the 6% percentage of sacral cases respectively. Lesions that were considered too extensive or larger than 7 cm decreased from 7 to 1% while associated kyphotic deformities decreased from 6 to 1.4% (P < 0.01); symptomatic Chiari II malformation at birth also decreased from 7 to 2% in the pre- and post-fortification cohorts respectively with all these changes being statistically significant (P < 0.01). Seventy-nine percent and 80% of the pre and post FAF cohorts required CSF VP shunting with a mean time for insertion of 10 days after spinal defect closure with no significant statistical change between the two groups. CONCLUSIONS This study describes a four-staple folate fortified population of live-born patients with myelomeningocele lesions whose neurological level, defect size, and associated deformities such as spinal kyphosis and symptomatic Chiari II at birth suggest that folate fortification could have diminished the severity of this congenital disease.
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Affiliation(s)
- Adrian Caceres
- Neurosurgery Department, Hospital Nacional de Niños, "Dr. Carlos Sáenz Herrera", San José, Costa Rica.
| | | | | | - Roy Wong-McClure
- Epidemiology Surveillance Unit, Caja Costarricense de Seguro Social, San José, Costa Rica
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Hosseini-Siyanaki MR, Liu S, Dagra A, Reddy R, Reddy A, Carpenter SL, Khan M, Lucke-Wold B. Surgical Management of Myelomeningocele. NEONATAL 2023; 4:08. [PMID: 38179156 PMCID: PMC10766379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Myelomeningocele (MMC) is one of the most common abnormalities of the central nervous system that causes significant neurological impairment. Traditionally, treatment consisted of postnatal closure with the management of the complications, such as ventricular shunting. MMC is a plausible candidate for in-utero surgery because of the mechanism of neurologic damage that begins with abnormal neurulation and continues throughout gestation. Researchers discussed the benefits of in-utero closure prior to the publication of the prospective randomized multicenter Management of Myelomeningocele Study (MOMS trial). Compared to postnatal repair with maternal complications and prematurity as trade-offs, prenatal repair reduced shunting, reversed hindbrain herniation, and improved neurological function. This article discusses the diagnosis, evaluation, long-term follow-up, surgical options, and innovative treatment for fetal myelomeningocele.
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Affiliation(s)
| | - Sophie Liu
- Department of Neuroscience, University of Johns Hopkins, Baltimore, MD, USA
| | - Abeer Dagra
- University of Florida, College of Medicine, Gainesville, FL, USA
| | - Ramya Reddy
- University of Florida, College of Medicine, Gainesville, FL, USA
| | - Akshay Reddy
- University of Florida, College of Medicine, Gainesville, FL, USA
| | | | - Majid Khan
- University of Nevada, Reno School of Medicine, Reno, NV, USA
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12
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Advances in Fetal Surgical Repair of Open Spina Bifida. Obstet Gynecol 2023; 141:505-521. [PMID: 36735401 DOI: 10.1097/aog.0000000000005074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 10/03/2022] [Indexed: 02/04/2023]
Abstract
Spina bifida remains a common congenital anomaly of the central nervous system despite national fortification of foods with folic acid, with a prevalence of 2-4 per 10,000 live births. Prenatal screening for the early detection of this condition provides patients with the opportunity to consider various management options during pregnancy. Prenatal repair of open spina bifida, traditionally performed by the open maternal-fetal surgical approach through hysterotomy, has been shown to improve outcomes for the child, including decreased need for cerebrospinal fluid diversion surgery and improved lower neuromotor function. However, the open maternal-fetal surgical approach is associated with relatively increased risk for the patient and the overall pregnancy, as well as future pregnancies. Recent advances in minimally invasive prenatal repair of open spina bifida through fetoscopy have shown similar benefits for the child but relatively improved outcomes for the pregnant patient and future childbearing.
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Martins EJ, Mattiello-Sverzut AC, Franco CSB, de Lemos TW, Aagaard P. Muscle strength, rate of torque development and neuromuscular activation of the upper arm muscles in children and adolescents with spina bifida. Clin Biomech (Bristol, Avon) 2023; 102:105861. [PMID: 36623326 DOI: 10.1016/j.clinbiomech.2022.105861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND The use of locomotive devices requires sufficient levels of upper limb strength. Therefore, it is important to evaluate the maximal isometric torque, rate of torque development and neuromuscular activation in youth with spina bifida. The objective was to investigate these parameters in the elbow muscles of youth with spina bifida versus healthy age-matched peers. METHODS Forty-eight participants (8-17 years) were recruited: Spina Bifida (n = 23) and non-affected Controls (n = 25). Maximal isometric elbow flexor/extensor contractions were performed to assess maximal muscle strength (peak torque) and rate of torque development, along with synchronized electromyography recording in the biceps and triceps brachii muscles. FINDINGS During elbow flexor contractions, Spina Bifida showed reduced rate of torque development in the early contraction phase (0-50 ms) along with lowered relative rate of torque development in the later rate of torque development phase (0-100/200/300 ms) compared to controls. Spina Bifida showed reduced rate of torque development for the elbow extensors in the later phase of rising muscle force (0-200/300 ms) compared to controls. Lower isometric peak torque and smaller triceps brachii electromyography amplitudes (0-200/300 ms) were observed during elbow extensor contractions in Ambulatory spina bifida participants vs. controls. INTERPRETATION Although a majority of peak torque and rate of torque development parameters did not differ, significant impairments in maximal and rapid elbow muscle force characteristics were noted in Spina Bifida compared to non-affected Controls. Ambulatory and Non-ambulatory spina bifida participants demonstrated similar rate of torque development in their upper arm muscles.
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Affiliation(s)
- Emanuela Juvenal Martins
- Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | | | | | | | - Per Aagaard
- Institute of Sports Science and Clinical Biomechanics, Muscle Physiology and Biomechanics Research Unit, University of Southern Denmark, Odense, Denmark.
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Wang H, Sun XC, Li JH, Yin LQ, Yan YF, Ma X, Xia HF. Combining Bone Collagen Material with hUC-MSCs for Applicationto Spina Bifida in a Rabbit Model. Stem Cell Rev Rep 2023; 19:1034-1050. [PMID: 36648605 DOI: 10.1007/s12015-022-10478-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2022] [Indexed: 01/18/2023]
Abstract
Spina bifida is one of the neural tube defects, with a high incidence in human birth defects, which seriously affects the health and quality of life of patients. In the treatment of bone defects, the source of autologous bone is limited and will cause secondary damage to the patient. At the same time, since the bone tissue in animals needs to play a variety of biological functions, its complex structure cannot be replaced by a single material. The combination of mechanical materials and biological materials has become a common choice. Human umbilical cord mesenchymal stem cells (hUC-MSCs) have the advantages of easy access, rapid proliferation, low immunogenicity, and no ethical issues. It is often used in the clinical research of tissue regeneration and repair. Therefore, in this study, we established a spina bifida model using Japanese white rabbits. This model was used to screen the best regenerative repair products for congenital spina bifida, and to evaluate the safety of regenerative repair products. The results showed that the combination of hUC-MSCs with collagen material had better regeneration effect than collagen material alone, and had no negative impact on the health of animals. This study provides a new idea for the clinical treatment of spina bifida, and also helps to speed up the research progress of regenerative repair products.
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Affiliation(s)
- Hu Wang
- Reproductive and Genetic Center, NHC Key Laboratory of Reproductive Health Engineering Technology Research (NRIFP), National Research Institute for Family Planning, Beijing, 100081, China.,Graduate Schools, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Xue-Cheng Sun
- Reproductive and Genetic Center, NHC Key Laboratory of Reproductive Health Engineering Technology Research (NRIFP), National Research Institute for Family Planning, Beijing, 100081, China.,Medical Genetics, Zibo Maternal and Child Health Hospital, Zibo, 255000, China
| | - Jian-Hui Li
- Reproductive and Genetic Center, NHC Key Laboratory of Reproductive Health Engineering Technology Research (NRIFP), National Research Institute for Family Planning, Beijing, 100081, China
| | - Li-Qiang Yin
- Yantai Zhenghai Bio-Tech Co., Ltd., Yantai, 264006, China
| | - Yu-Fang Yan
- Yantai Zhenghai Bio-Tech Co., Ltd., Yantai, 264006, China
| | - Xu Ma
- Reproductive and Genetic Center, NHC Key Laboratory of Reproductive Health Engineering Technology Research (NRIFP), National Research Institute for Family Planning, Beijing, 100081, China. .,Graduate Schools, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Hong-Fei Xia
- Reproductive and Genetic Center, NHC Key Laboratory of Reproductive Health Engineering Technology Research (NRIFP), National Research Institute for Family Planning, Beijing, 100081, China. .,Graduate Schools, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, 100730, China.
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Siahaan AMP, Susanto M, Lumbanraja SN, Ritonga DH. Long-term neurological cognitive, behavioral, functional, and quality of life outcomes after fetal myelomeningocele closure: a systematic review. Clin Exp Pediatr 2023; 66:38-45. [PMID: 36470279 PMCID: PMC9815938 DOI: 10.3345/cep.2022.01102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/07/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Myelomeningocele is a lifelong condition that features several comorbidities, such as hydrocephalus, scoliosis, club foot, and lower limb sensory and motor disabilities. Its management has progressed over time, ranging from supportive care to early postnatal closure to prenatal closure of the defect. Recent research discovered that fetal myelomeningocele closure (fMMC) provided superior neurological outcomes to those of postnatal closure. When performed at 12 months of age, fMMC can avert or delay the need for a ventriculoperitoneal shunt and reversed the hindbrain herniation. Moreover, fMMC reportedly enhanced motor function and mental development at 30 months of age. However, its long-term outcomes remain dubious. PURPOSE This systematic review aimed to determine the long-term neurological cognitive, behavioral, functional, and quality of life (QoL) outcomes after fMMC. METHODS The PubMed, Directory of Open Access Journals, EBSCO, and Cochrane databases were extensively searched for articles published in 2007-2022. Meta-analyses, clinical trials, and randomized controlled trials with at least 5 years of follow-up were given priority. RESULTS A total of 11 studies were included. Most studies revealed enhanced long-term cognitive, behavioral, functional, and QoL outcomes after fMMC. CONCLUSION Our results suggest that fMMC substantially enhanced patients' long-term neurological cognitive, behavioral, functional, and QoL outcomes.
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Affiliation(s)
| | - Martin Susanto
- Department of Neurosurgery, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
| | - Sarma Nursani Lumbanraja
- Department of Obstetrics & Gynecology, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
| | - Dwi Herawati Ritonga
- Division of Pediatrics, H Amri Tambunan General Hospital, Lubuk Pakam, Indonesia
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Fetoscopic Myelomeningocele Repair with Complete Release of the Tethered Spinal Cord Using a Three-Port Technique: Twelve-Month Follow-Up-A Case Report. Diagnostics (Basel) 2022; 12:diagnostics12122978. [PMID: 36552985 PMCID: PMC9776674 DOI: 10.3390/diagnostics12122978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 11/29/2022] Open
Abstract
Open spina bifida is one of the most common congenital defects of the central nervous system. Open fetal surgery, which is one of the available therapeutic options, remains the gold standard for prenatal repairs. Fetoscopic closure may lower the number of maternal complications associated with open fetal surgery. Regardless of the approach, the outcome may be compromised by the development of tethered spinal cord (TSC) syndrome. At 24.2 weeks of gestation, a primipara was admitted due to fetal myelomeningocele and was deemed eligible for fetoscopic repair. Fetal surgery was performed at 25.0 weeks of gestation. It was the first complete untethering of the spinal cord and anatomic reconstruction (dura mater, spinal erectors, skin) achieved during a fetoscopic repair of spina bifida. Cesarean section due to placental abruption was performed at 31.1 weeks of gestation. VP shunting, with no need for revision, was performed at 5 weeks postdelivery due to progressing ventriculomegaly. No clinical or radiological signs of secondary tethering were observed. Neurological examination at 11 months postdelivery revealed cranial nerves without any signs of damage, axial hypotonia, decreased muscle tone in the lower extremities, and absent pathological reflexes. Motor development was slightly retarded. Complete untethering of the neural structures should always be performed, regardless of the surgical approach, as it is the only course of action that lowers the risk for developing secondary TSC.
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Cell-Based and Gene-Based Therapy Approaches in Neuro-orthopedic Disorders: a Literature Review. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2022. [DOI: 10.1007/s40883-022-00284-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Intra-amniotic Injection of Poly(lactic-co-glycolic Acid) Microparticles Loaded with Growth Factor: Effect on Tissue Coverage and Cellular Apoptosis in the Rat Model of Myelomeningocele. J Am Coll Surg 2022; 234:1010-1019. [PMID: 35703790 DOI: 10.1097/xcs.0000000000000156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Myelomeningocele (MMC) is a devastating congenital neurologic disorder that can lead to lifelong morbidity and has limited treatment options. This study investigates the use of poly(lactic-co-glycolic acid) (PLGA) microparticles (MPs) loaded with fibroblast growth factor (FGF) as a platform for in utero treatment of MMC. STUDY DESIGN Intra-amniotic injections of PLGA MPs were performed on gestational day 17 (E17) in all-trans retinoic acid-induced MMC rat dams. MPs loaded with fluorescent dye (DiO) were evaluated 3 hours after injection to determine incidence of binding to the MMC defect. Fetuses were then treated with PBS or PLGA particles loaded with DiO, bovine serum albumin, or FGF and evaluated at term (E21). Fetuses with MMC defects were evaluated for gross and histologic evidence of soft tissue coverage. The effect of PLGA-FGF treatment on spinal cord cell death was evaluated using an in situ cell death kit. RESULTS PLGA-DiO MPs had a binding incidence of 86% and 94% 3 hours after injection at E17 for doses of 0.1 mg and 1.2 mg, respectively. Incidence of soft tissue coverage at term was 19% (4 of 21), 22% (2 of 9), and 83% (5 of 6) for PLGA-DiO, PLGA-BSA, and PLGA-FGF, respectively. At E21, the percentage of spinal cord cells positive for in situ cell death was significantly higher in MMC controls compared with wild-type controls or MMC pups treated with PLGA-FGF. CONCLUSION PLGA MPs are an innovative minimally invasive platform for induction of soft tissue coverage in the rat model of MMC and may reduce cellular apoptosis.
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Stokes SC, Kabagambe SK, Lee CJ, Wang A, Farmer DL, Kumar P. Impact of Gestational Age on Neuroprotective Function of Placenta-Derived Mesenchymal Stromal Cells. J Surg Res 2022; 273:201-210. [PMID: 35093836 PMCID: PMC9396930 DOI: 10.1016/j.jss.2021.12.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/29/2021] [Accepted: 12/15/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION The Management of Myelomeningocele Study demonstrated that in utero repair of myelomeningocele improved motor outcomes compared with postnatal repair. However, even after in utero repair, many children were still unable to walk. We have previously demonstrated that augmentation of in utero repair with early-gestation placental mesenchymal stromal cells (PMSCs) improves motor outcomes in lambs compared with standard in utero repair. The neuroprotective potential of PMSCs of all gestational ages has not been evaluated previously. METHODS PMSCs were isolated from discarded first trimester (n = 3), second trimester (n = 3), and term (n = 3) placentas by explant culture. Cytokine array analysis was performed. Secretion of two neurotrophic factors, brain-derived neurotrophic factor and hepatocyte growth factor, was evaluated by enzyme-linked immunosorbent assay. An in vitro neuroprotective assay demonstrated to be associated with in vivo function was performed. RESULTS All cell lines secreted immunomodulatory and neuroprotective cytokines and secreted the neurotrophic factors evaluated. Increased neuroprotective capabilities relative to no PMSCs were demonstrated in two of the three first trimester cell lines (5.61, 4.96-6.85, P < 0.0001 and 2.67, 1.67-4.12, P = 0.0046), two of the three second trimester cell lines (2.82, 2.45-3.43, P = 0.0004 and 3.25, 2.62-3.93, P < 0.0001), and two of the three term cell lines (2.72, 2.32-2.92, P = 0.0033 and 2.57, 1.41-4.42, P = 0.0055). CONCLUSIONS We demonstrated variation in neuroprotective function between cell lines and found that some cell lines from each trimester had neuroprotective properties. This potentially expands the donor pool of PMSCs for clinical use. Further in-depth studies are needed to understand potential subtle differences in cell function at different gestational ages.
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Biodegradation of poly(L-lactic acid) and poly(ε-caprolactone) patches by human amniotic fluid in an in-vitro simulated fetal environment. Sci Rep 2022; 12:3950. [PMID: 35273223 PMCID: PMC8913814 DOI: 10.1038/s41598-022-07681-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/04/2022] [Indexed: 11/17/2022] Open
Abstract
Open spina bifida or myelomeningocele (MMC) is a devastating neurologic congenital defect characterized by primary failure of neural tube closure of the spinal column during the embryologic period. Cerebrospinal fluid leak caused by the MMC spinal defect in the developing fetus can result in a constellation of encephalic anomalies that include hindbrain herniation and hydrocephalus. The exposure of extruded spinal cord to amniotic fluid also poses a significant risk for inducing partial or complete paralysis of the body parts beneath the spinal aperture by progressive spinal cord damage in-utero. A randomized trial demonstrated that prenatal repair by fetal surgery, sometimes using patches, to cover the exposed spinal cord with a watertight barrier is effective in reducing the postnatal neurologic morbidity as evidenced by decreased incidence and severity of postnatal hydrocephalus and the reduced need for ventricular-peritoneal shunting. Currently, the use of inert or collagen-based patches are associated with high costs and inadequate structural properties. Specifically, the inert patches do not degrade after implantation, causing the need for a post-natal removal surgery associated with trauma for the newborn. Our present study is aimed towards in-vitro degradation studies of a newly designed patch, which potentially can serve as a superior alternative to existing patches for MMC repair. This novel patch was fabricated by blending poly(l-lactic acid) and poly(ε-caprolactone). The 16-week degradation study in amniotic fluid was focused on tracking changes in crystallinity and mechanical properties. An additional set of designed patches was exposed to phosphate-buffered saline (PBS), as a time-paired control. Crystallinity studies indicate the progress of hydrolytic degradation of the patch in both media, with a preference to bulk erosion in phosphate buffered saline and surface erosion in amniotic fluid. Mechanical testing results establish that patch integrity is not compromised up to 16 weeks of exposure either to body fluids analog (PBS) or to amniotic fluid.
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Paschereit F, Schindelmann KH, Hummel M, Schneider J, Stoltenburg-Didinger G, Kaindl AM. Cerebral Abnormalities in Spina Bifida: A Neuropathological Study. Pediatr Dev Pathol 2022; 25:107-123. [PMID: 34614376 PMCID: PMC9109215 DOI: 10.1177/10935266211040500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Spina bifida (SB) is the most common neural tube defect in humans. Here, we analyzed systematically the neuropathological findings of the brain in SB cases. METHODS 79 cases with SB aperta (SBA) and 6 cases with SB occulta (SBO) autopsied at the Charité Neuropathology from 1974 to 2000 were re-evaluated retrospectively. For this, case files and spinal cord as well as brain sections were studied. RESULTS While no brain malformations were detected in SBO cases, 95% of SBA cases had brain malformations. Main brain anomalies identified were hydrocephalus (71%), Chiari II malformation (36%), heterotopia (34%), other cerebellar anomalies (36%), gyrification defects (33%), and ependymal denudation (29%). Hydrocephalus was observed as early as gestational week 17 and was highly associated to Chiari II and ependymal denudation. In 55% SBA was accompanied by further anomalies not primarily affecting the CNS. CONCLUSION We confirm using neuropathologic methods brain malformations in most SBA but none in SBO cases. In addition to our previous radiologic study, we now demonstrate the high prevalence of cerebellar malformations and cerebral heterotopias in SBA. The early detection of hydrocephalus and Chiari II malformation in fetuses raises the question whether these arise parallel rather than in strict temporal sequence.
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Affiliation(s)
- Fabienne Paschereit
- Institute of Cell Biology and Neurobiology, Charité—Universitätsmedizin Berlin, Berlin, Germany,Department of Pediatric Neurology, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Kim Hannah Schindelmann
- Institute of Cell Biology and Neurobiology, Charité—Universitätsmedizin Berlin, Berlin, Germany,Department of Pediatric Neurology, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Hummel
- Institute of Pathology, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Joanna Schneider
- Department of Pediatric Neurology, Charité—Universitätsmedizin Berlin, Berlin, Germany,Center for Chronically Sick Children (Sozialpädiatrisches Zentrum, SPZ), Charité—Universitätsmedizin Berlin, Berlin, Germany
| | | | - Angela M Kaindl
- Institute of Cell Biology and Neurobiology, Charité—Universitätsmedizin Berlin, Berlin, Germany,Department of Pediatric Neurology, Charité—Universitätsmedizin Berlin, Berlin, Germany,Center for Chronically Sick Children (Sozialpädiatrisches Zentrum, SPZ), Charité—Universitätsmedizin Berlin, Berlin, Germany,Angela M Kaindl, Department of Pediatric Neurology, Charité—Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany.
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Engineering alginate microparticles for optimized accumulation in fetal rat myelomeningocele. J Pediatr Surg 2022; 57:544-550. [PMID: 33933264 DOI: 10.1016/j.jpedsurg.2021.03.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/17/2021] [Accepted: 03/30/2021] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Intraamniotic microparticle injection is a novel technique for the treatment of myelomeningocele (MMC) in which microparticles are delivered in-utero in a minimally invasive fashion to bind to and protect the exposed spinal cord. This technique could offer earlier intervention and greater access to prenatal treatment of MMC. Here we demonstrate progress on the engineering of the microparticles to promote binding to the MMC defect. We hypothesized that when the particle's surface charge was decreased and delivery concentration increased, particles would bind to the MMC defect more frequently and more specifically. METHODS Alginate microparticles underwent surface modification to alter the particle charge. Dye-loaded alginate, alginate- dextran sulfate, and alginate- chitosan were injected on e17 into the amnion of a rat model of MMC and the incidence of successful binding and specificity of particle binding to the MMC defect were calculated. Specificity of binding was described using a defect-to-skin brightness ratio based on specimen imaging. Comparisons were made with chi-square, p< 0.05 marked significance. RESULTS There was no difference in the incidence of successful binding at e17 with 0.6 mg/fetal kg between the three tested alginate particles. However, alginate- dextran sulfate bound most specifically to the defect (p< 0.05). Alginate-dextran sulfate also demonstrated more frequent binding at higher doses than lower doses (79% at 1.2 mg/kg vs 38% at 0.6 mg/kg and 24% at 0.8 mg/kg, p< 0.01 for both). Specificity was not sacrificed at higher dose injections: defect-to-skin brightness ratio of 5.4 at 1.2 mg/kg vs 1.8 at 0.6 mg/kg (p< 0.05) CONCLUSION: We demonstrate that the intraamniotic injection of alginate-dextran sulfate microparticles at high concentration bind more frequently and more specifically to MMC defects than the previously tested unmodified alginate microparticles.
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Milani HJF, de Sá Barreto EQ, Araujo Júnior E, Cavalheiro S, Barbosa MM, Moron AF. Measurement of the Area and Circumference of the Leg: Preliminary Results of a New Method for Estimating Leg Muscle Trophism in Fetuses With Open Lumbosacral Spina Bifida. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2022; 41:377-388. [PMID: 33792954 DOI: 10.1002/jum.15715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/25/2021] [Accepted: 03/08/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To standardize a new technique to evaluate the fetal leg muscle trophism by measuring the area and circumference, and comparing this technique between normal and fetuses with open lumbosacral spina bifida (SB). METHODS Observational cross-sectional study was carried out on pregnant women with 26 weeks who were divided into two groups: Group I-fetuses with diagnosis of open lumbosacral SB; Group II-normal fetuses (control). In fetuses with SB, subjective evaluation of the lower limbs was performed (muscle echogenicity and leg movements). To estimate the leg muscle trophism, the measurement of the area and circumference of the leg were standardized, and the reproducibility of this method was performed. RESULTS Thirty-one fetuses with open lumbosacral SB and 51 normal fetuses were evaluated. The measurements of the area and circumference of the leg proved to be highly reproducible (intraclass correlation coefficient-ICC > 0.95). The leg area and circumference measurements were statistically lower in the SB group than in the control group (p < .001). When subjective ultrasound assessment demonstrated hypotrophy of the lower limbs, the measurements of the area and circumference of the leg were statistically lower when compared to normal fetuses (p < .001). Fetuses with open SB with abnormal lower limb movements had lower measurements of the area and circumference of the leg than fetuses with normal movements (p < .001). CONCLUSION A new technique for estimating fetal leg muscle trophism was standardized, which proved to be highly reproducible and was able to show the difference between normal and fetuses with SB.
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Affiliation(s)
- Hérbene José Figuinha Milani
- Department of Obstetrics, Paulista School of Medicine - Federal University of São Paulo (EPM-UNIFESP), São Paulo, Brazil
- Department of Fetal Medicine, Hospital e Maternidade Santa Joana, São Paulo, Brazil
| | | | - Edward Araujo Júnior
- Department of Obstetrics, Paulista School of Medicine - Federal University of São Paulo (EPM-UNIFESP), São Paulo, Brazil
| | - Sérgio Cavalheiro
- Department of Neurology and Neurosurgery, Paulista School of Medicine - Federal University of São Paulo (EPM-UNIFESP), São Paulo, Brazil
- Department of Fetal Neurosurgery, Hospital e Maternidade Santa Joana, São Paulo, Brazil
| | - Maurício Mendes Barbosa
- Department of Fetal Medicine, Hospital e Maternidade Santa Joana, São Paulo, Brazil
- Service of Gynecology and Obstetrics, Israeli Faculty of Health Sciences Albert Einstein, São Paulo, Brazil
| | - Antonio Fernandes Moron
- Department of Obstetrics, Paulista School of Medicine - Federal University of São Paulo (EPM-UNIFESP), São Paulo, Brazil
- Department of Fetal Medicine, Hospital e Maternidade Santa Joana, São Paulo, Brazil
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Sharma S, Jeyaraman M, Muthu S. Role of stem cell therapy in neurosciences. ESSENTIALS OF EVIDENCE-BASED PRACTICE OF NEUROANESTHESIA AND NEUROCRITICAL CARE 2022:163-179. [DOI: 10.1016/b978-0-12-821776-4.00012-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
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Retrouvey M, Vossough A, Zandifar A, Bellah RD, Heuer GG, Flibotte J, Tierradentro-Garcia LO, Saade-Lemus S, Kim JDU, Back SJ, Kaplan SL. Validation of Sonographic Fronto-Occipital Ratio Based on Anatomical Landmarks Compared to MR/CT-Derived Indexes in Children with Chiari II and Ventriculomegaly. Pediatr Neurosurg 2022; 57:71-77. [PMID: 34937031 DOI: 10.1159/000521622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/20/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Ultrasound (US)-based indexes such as fronto-occipital ratio (FOR) can be used to obtain an acceptable estimation of ventricular volume. Patients with colpocephaly present a unique challenge due to the shape of their ventricles. In the present study, we aimed to evaluate the validity and reproducibility of the modified US-FOR index in children with Chiari II-related ventriculomegaly. METHODS In this retrospective study, we evaluated Chiari II patients younger than 1 year who underwent head US and MR or CT scans for ventriculomegaly evaluation. MR/CT-based FOR was measured in the axial plane by identifying the widest diameter of frontal horns, occipital horns, and the interparietal diameter (IPD). US-based FOR (US-FOR) was measured using the largest diameter based on the following landmarks: frontal horn and IPD in the coronal plane at the level of the foramen of Monro, IPD just superior to the Sylvian fissures, and occipital horn posterior to the thalami and inferior to the superior margins of the thalami. Intraclass correlation coefficients (ICCs) were used to evaluate inter-rater reliability, and Pearson correlation coefficients and Bland-Altman plots were applied to assess agreement between US and other two modalities. RESULTS Sixty-three paired US and MR/CT exams were assessed for agreement between US-FOR and MR/CT-FOR measurements. ICC showed an excellent inter-rater reliability for US-FOR (ICC = 0.99, p < 0.001) and MR/CT-FOR (ICC = 0.99, p < 0.001) measurements. The mean (range) values based on US-FOR showed a slight overestimation in comparison with MR/CT-FOR (0.51 [0.36-0.68] vs. 0.46 [0.34-0.64]). The Pearson correlation coefficient showed high cross-modality agreement for the FOR index (r = 0.83, p < 0.001). The Bland-Altman plot showed excellent concordance between US-FOR and MR/CT-FOR with a bias of 0.05 (95% CI: -0.03 to 0.13). CONCLUSION US-FOR in the coronal plane is a comparable tool for evaluating ventriculomegaly in Chiari II patients when compared with MR/CT-FOR, even in the context of colpocephaly.
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Affiliation(s)
- Michele Retrouvey
- Department of Radiology, Children's Hospital of the King's Daughters, Eastern Virginia Medical School, Medical Center Radiologists, Norfolk, Virginia, USA
| | - Arastoo Vossough
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Alireza Zandifar
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA,
| | - Richard D Bellah
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Gregory G Heuer
- Division of Neurosurgery, Children's Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - John Flibotte
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | - Sandra Saade-Lemus
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Neurology, Brigham and Women's Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jorge Du Ub Kim
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Susan J Back
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Summer L Kaplan
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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26
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Stokes SC, Theodorou CM, Jackson JE, Pivetti C, Kumar P, Yamashiro KJ, Paxton ZJ, Reynaga L, Hyllen A, Wang A, Farmer DL. Long-term safety evaluation of placental mesenchymal stromal cells for in utero repair of myelomeningocele in a novel ovine model. J Pediatr Surg 2022; 57:18-25. [PMID: 34657738 PMCID: PMC9415987 DOI: 10.1016/j.jpedsurg.2021.09.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 09/08/2021] [Indexed: 01/03/2023]
Abstract
PURPOSE Augmentation of in utero myelomeningocele repair with human placental mesenchymal stromal cells seeded onto extracellular matrix (PMSC-ECM) improves motor outcomes in an ovine myelomeningocele model. This study evaluated the safety of PMSC-ECM application directly onto the fetal spinal cord in preparation for a clinical trial. METHODS Laminectomy of L5-L6 with PMSC-ECM placement directly onto the spinal cord was performed in five fetal lambs at gestational age (GA) 100-106 days. Lambs and ewes were monitored for three months following delivery. Lambs underwent magnetic resonance imaging (MRI) of the brain and spine at birth and at three months. All organs from lambs and uteri from ewes underwent histologic evaluation. Lamb spinal cords and brains and ewe placentas were evaluated for persistence of PMSCs by polymerase chain reaction for presence of human DNA. RESULTS MRIs demonstrated no evidence of abnormal tissue growth or spinal cord tethering. Histological analysis demonstrated no evidence of abnormal tissue growth or treatment related adverse effects. No human DNA was identified in evaluated tissues. CONCLUSION There was no evidence of abnormal tissue growth or PMSC persistence at three months following in utero application of PMSC-ECM to the spinal cord. This supports proceeding with clinical trials of PMSC-ECM for in utero myelomeningocele repair. LEVEL OF EVIDENCE N/A TYPE OF STUDY: Basic science.
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Affiliation(s)
- Sarah C Stokes
- Division of Pediatric General, Thoracic and Fetal Surgery, Department of Surgery, University of California Davis Medical Center, 2335 Stockton Blvd, Room 5107, Sacramento, CA 95817, USA.
| | - Christina M Theodorou
- Division of Pediatric General, Thoracic, and Fetal Surgery, Department of Surgery, University of California Davis Medical Center, Sacramento, CA 95817, USA
| | - Jordan E Jackson
- Division of Pediatric General, Thoracic, and Fetal Surgery, Department of Surgery, University of California Davis Medical Center, Sacramento, CA 95817, USA
| | - Christopher Pivetti
- Surgical Bioengineering Laboratory, University of California Davis, Sacramento, CA 95817, USA
| | - Priyadarsini Kumar
- Surgical Bioengineering Laboratory, University of California Davis, Sacramento, CA 95817, USA
| | - Kaeli J Yamashiro
- Division of Pediatric General, Thoracic, and Fetal Surgery, Department of Surgery, University of California Davis Medical Center, Sacramento, CA 95817, USA
| | - Zachary J Paxton
- Surgical Bioengineering Laboratory, University of California Davis, Sacramento, CA 95817, USA
| | - Lizette Reynaga
- Surgical Bioengineering Laboratory, University of California Davis, Sacramento, CA 95817, USA
| | - Alicia Hyllen
- Surgical Bioengineering Laboratory, University of California Davis, Sacramento, CA 95817, USA
| | - Aijun Wang
- Surgical Bioengineering Laboratory, University of California Davis, Sacramento, CA 95817, USA.,Shriners Hospital for Children Northern California, 3425 Stockton Blvd, Sacramento, CA 95817, USA
| | - Diana L Farmer
- Division of Pediatric General, Thoracic, and Fetal Surgery, Department of Surgery, University of California Davis Medical Center, Sacramento, CA 95817, USA.,Surgical Bioengineering Laboratory, University of California Davis, Sacramento, CA 95817, USA.,Shriners Hospital for Children Northern California, 3425 Stockton Blvd, Sacramento, CA 95817, USA
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Molina-Giraldo S, Zapata Salcedo R, Rojas Arias JL, Acuña Osorio E, Pinto Quiñones ML, Restrepo HF, Cruz-Martinez R. Open surgery for in utero repair of spina bifida: Microneurosurgery versus standard technique - A systematic review. Prenat Diagn 2021; 41:1615-1623. [PMID: 34676573 DOI: 10.1002/pd.6063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/08/2021] [Accepted: 10/19/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND/OBJECTIVES Prenatal myelomeningocele (MMC) repair has been shown to improve neurological outcomes. It has been suggested that decreases in the hysterotomy diameter during surgery can improve perinatal outcomes without altering neurologic outcomes. The objective of this study is to describe and compare the main maternal and fetal outcomes of fetuses undergoing open surgery for MMC repair, through the different modifications (standard-classical, mini-hysterotomy, and microneurosurgery). DATA SOURCE MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, Ovid, SciELO, LILACS, PROSPERO. RESULTS From a total of 112 studies, seven case series were selected including 399 fetuses with open fetal surgery, five studies using the classical technique (n = 181), one with mini-hysterotomy (n = 176), and one with the microneurosurgery technique (n = 42). The mini-hysterotomy and microneurosurgery techniques presented a lower risk of preterm delivery (21.4% and 30%, respectively) compared to the classic technique (47.3%), premature rupture of membranes (78%, 62%, and 72.5 %, respectively), oligohydramnios (0% and 72.5%, respectively), dehiscence of hysterotomy, maintaining the same frequency of Chiari reversion (78%, 62%, and 72.5%, respectively), postnatal correction requirement (0%, 4.8%, and 5.8%, respectively), and lower frequency of requirement for a ventriculoperitoneal shunt placement (13.0%, 7.5%, and 29.1%, respectively). CONCLUSION The least invasive techniques (minihysterotomy-microneurosurgery) are possible and reproduceable, as they are associated with better maternal and perinatal outcomes.
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Affiliation(s)
- Saulo Molina-Giraldo
- Section of Fetal Therapy and Fetal Surgery Unit, Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology Hospital de San José, Fundación Universitaria de Ciencias de la Salud - FUCS, FetoNetwork Colombia, Bogotá, Colombia.,Section of Fetal Therapy and Fetal Surgery Unit, Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Clínica Colsubsidio 94, Bogotá, Colombia
| | - Roberto Zapata Salcedo
- Section of Fetal Therapy and Fetal Surgery Unit, Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology Hospital de San José, Fundación Universitaria de Ciencias de la Salud - FUCS, FetoNetwork Colombia, Bogotá, Colombia
| | - José Luis Rojas Arias
- Section of Fetal Therapy and Fetal Surgery Unit, Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology Hospital de San José, Fundación Universitaria de Ciencias de la Salud - FUCS, FetoNetwork Colombia, Bogotá, Colombia
| | - Edgar Acuña Osorio
- Section of Fetal Therapy and Fetal Surgery Unit, Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology Hospital de San José, Fundación Universitaria de Ciencias de la Salud - FUCS, FetoNetwork Colombia, Bogotá, Colombia
| | - Martha Lucia Pinto Quiñones
- Section of Fetal Therapy and Fetal Surgery Unit, Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology Hospital de San José, Fundación Universitaria de Ciencias de la Salud - FUCS, FetoNetwork Colombia, Bogotá, Colombia.,Section of Fetal Therapy and Fetal Surgery Unit, Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Clínica Colsubsidio 94, Bogotá, Colombia
| | - Hector Fabio Restrepo
- Research Division, Fundación Universitaria de Ciencias de la Salud - FUCS Bogotá, Bogotá, Colombia
| | - Rogelio Cruz-Martinez
- Unidad de Cirugía Fetal, Hospital de Especialidades del Niño y la Mujer, y Centro de Diagnóstico Prenatal Avanzado y Cirugía Fetal, Medicina Fetal México, Querétaro, México
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Swann‐Thomsen HE, Mendez‐Gallardo V, Kollmeyer LR, Hunter K, Brumley MR. A preliminary investigation of high retinoic acid exposure during fetal development on behavioral competency and litter characteristics in newborn rats. Brain Behav 2021; 11:e2253. [PMID: 34473418 PMCID: PMC8553327 DOI: 10.1002/brb3.2253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/26/2021] [Accepted: 06/01/2021] [Indexed: 12/04/2022] Open
Abstract
Myelomeningocele (MMC) is the most common and severe type of spina bifida in which the developing spine and neural tube fail to close during prenatal development. This typically results in a small portion of the lower spinal cord and meninges protruding from the back of the individual, accompanied by severe motor and sensory deficits. In rats, retinoic acid (RA) exposure in high doses during fetal development has been shown to induce morphologic and clinical symptoms similar to humans with MMC. The aim of the current study was to examine litter characteristics and sensorimotor function in MMC-affected rat pups. Pregnant rats were gavage-fed 2 ml olive oil or all-trans RA (40, 45, 50 mg/kg) on gestational day 11. Pups underwent behavioral testing on postnatal day 2. Litter characteristics and newborn sensorimotor function varied across RA doses. Pups prenatally exposed to 45 and 50 mg/kg RA weighed significantly less than olive oil and 40 mg/kg RA pups. Litters exposed to 45 mg/kg RA suffered significantly higher mortality rates compared to other groups. Additionally, bladder function was significantly impaired in pups exposed to 40 mg/kg RA. Sensorimotor function findings demonstrated that for most behavioral assessments there was not a significant difference between control and RA-exposed subjects. However, pups treated with 40 mg/kg RA showed increased facial wiping, suggesting a hyper-responsiveness to sensory stimuli. Overall, the findings of the current study provide evidence for a model to examine litter characteristics and behavioral effects as well as morphology.
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Affiliation(s)
- Hillary E. Swann‐Thomsen
- Department of PsychologyIdaho State UniversityPocatelloIdahoUSA
- Present address:
Applied Research DivisionSt. Luke's Health SystemBoiseIdahoUSA
| | | | | | - Kira Hunter
- Department of PsychologyIdaho State UniversityPocatelloIdahoUSA
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Johal N, Cao KX, Xie B, Millar M, Davda R, Ahmed A, Kanai AJ, Wood DN, Jabr RI, Fry CH. Contractile and Structural Properties of Detrusor from Children with Neurogenic Lower Urinary Tract Dysfunction. BIOLOGY 2021; 10:biology10090863. [PMID: 34571740 PMCID: PMC8471516 DOI: 10.3390/biology10090863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/25/2021] [Accepted: 08/29/2021] [Indexed: 12/11/2022]
Abstract
Simple Summary Disorders of bladder function can result from congenital spinal cord developmental defects and can remain in a significant number of patients despite surgical improvements to repair the primary defect. We studied the ability of bladder wall muscle from such patients to contract, a function essential to void collected urine and avoid urinary tract infections and potential damage to the kidneys. Tissue was taken when patients were several years old, at the time of surgical operations to improve bladder function. This tissue would otherwise have been discarded and was collected with the full ethical approval and consent of parents or guardians. We found that the ability of the bladder wall samples to contract was impaired and was generally stiffer; both of which would make it more difficult for the bladder to void urine. These functional changes were associated with a replacement of muscle with connective tissue (fibrosis). The experiments provide a pathway to devise strategies that might improve bladder function in these patients through reversal of the intrinsic tissue pathways that increase fibrosis. Abstract Neurogenic lower urinary tract (NLUT) dysfunction in paediatric patients can arise after congenital or acquired conditions that affect bladder innervation. With some patients, urinary tract dysfunction remains and is more difficult to treat without understanding the pathophysiology. We measured in vitro detrusor smooth muscle function of samples from such bladders and any association with altered Wnt-signalling pathways that contribute to both foetal development and connective tissue deposition. A comparator group was tissue from children with normally functioning bladders. Nerve-mediated and agonist-induced contractile responses and passive stiffness were measured. Histology measured smooth muscle and connective tissue proportions, and multiplex immunohistochemistry recorded expression of protein targets associated with Wnt-signalling pathways. Detrusor from the NLUT group had reduced contractility and greater stiffness, associated with increased connective tissue content. Immunohistochemistry showed no major changes to Wnt-signalling components except down-regulation of c-Myc, a multifunctional regulator of gene transcription. NLUT is a diverse term for several diagnoses that disrupt bladder innervation. While we cannot speculate about the reasons for these pathophysiological changes, their recognition should guide research to understand their ultimate causes and develop strategies to attenuate and even reverse them. The role of changes to the Wnt-signalling pathways was minor.
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Affiliation(s)
- Navroop Johal
- Department of Urology, Great Ormond St Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK; (N.J.); (K.X.C.)
| | - Kevin X. Cao
- Department of Urology, Great Ormond St Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK; (N.J.); (K.X.C.)
| | - Boyu Xie
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol BS8 1TD, UK; (B.X.); (R.I.J.)
| | - Michael Millar
- Queen’s Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK;
| | - Reena Davda
- Departments of Oncology and Urology, University College London Hospital, London W1G 8PH, UK; (R.D.); (D.N.W.)
| | - Aamir Ahmed
- Centre for Stem Cell Regeneration, King’s College London, London WC2R 2LS, UK;
| | - Anthony J. Kanai
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA;
| | - Dan N. Wood
- Departments of Oncology and Urology, University College London Hospital, London W1G 8PH, UK; (R.D.); (D.N.W.)
| | - Rita I. Jabr
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol BS8 1TD, UK; (B.X.); (R.I.J.)
| | - Christopher H. Fry
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol BS8 1TD, UK; (B.X.); (R.I.J.)
- Correspondence:
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30
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Murlimanju BV, Mishra R, Cincu R, Agrawal A. Letter to the Editor Regarding: "Functional Motor Skills in Children that Underwent Fetal Myelomeningocele Repair: Does Anatomic Level Matter?". World Neurosurg 2021; 151:329-330. [PMID: 34243659 DOI: 10.1016/j.wneu.2021.03.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 11/15/2022]
Affiliation(s)
- Bukkambudhi V Murlimanju
- Department of Anatomy, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, Karnataka, India.
| | - Rakesh Mishra
- Department of Neurosurgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Rafael Cincu
- Department of Neurosurgery, General University Hospital, Valencia, Spain
| | - Amit Agrawal
- Department of Neurosurgery, All India Institute of Medical Sciences, Saket Nagar, Madhya Pradesh, India
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31
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Corroenne R, Yepez M, Pyarali M, Fox K, Mastrobattista JM, Mack LM, Lee W, Whitehead WE, Castillo HA, Castillo J, Mehollin-Ray AR, Espinoza J, Shamshirsaz AA, Nassr AA, Belfort MA, Sanz Cortes M. Longitudinal evaluation of motor function in patients who underwent prenatal or postnatal neural tube defect repair. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2021; 58:221-229. [PMID: 32730648 DOI: 10.1002/uog.22165] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 06/10/2020] [Accepted: 07/03/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To compare the evolution of motor function from mid-gestation to 12 months of age between prenatally and postnatally repaired cases of open neural tube defect (ONTD). METHODS This was a retrospective cohort study of all fetuses that underwent prenatal (fetoscopic or open hysterotomy) or postnatal ONTD repair at a single institution between November 2011 and December 2018. The anatomical level of the lesion was defined as the upper bony spinal defect at initial magnetic resonance imaging assessment. Prenatal motor function of the lower extremities was evaluated by ultrasound according to the metameric level of the neurological lesion, based on the methodology of Carreras et al. Fetal motor function was assessed at referral, at 6 weeks after surgery in prenatally repaired cases or 6 weeks after referral in postnatally repaired cases (6-week follow-up) and at the last scan before delivery. In addition, motor function was assessed by a detailed neurological examination at birth and 12 months of age. First sacral (S1) neurological level of the lesion was considered as intact motor function. For statistical comparisons, we attributed numerical scores to each neurological level and motor function was expressed as median (range) neurological level. Motor function (as numerical score) and the proportion of cases with intact motor function and with motor function two or more levels better than expected based on the anatomical level of the lesion were compared between the prenatal- and postnatal-repair groups. Fetal motor function was compared to the anatomical level of the lesion at referral and a better motor function was defined when it was two or more levels better than the anatomical level of the lesion. To assess the evolution of motor function, we compared motor function at referral with that at each follow-up assessment using paired t-tests. RESULTS We included 127 patients with ONTD, of whom 93 underwent prenatal (51 fetoscopic and 42 open hysterotomy) and 34 postnatal repair. At the time of referral, cases in the prenatal- and postnatal-repair groups presented with a similar anatomical level of lesion (L3 (T9-S1) vs L3 (T7-S1); P = 0.52), similar motor function (S1 (L1-S1) vs S1 (L1-S1); P = 0.52) and a similar proportion of cases with intact motor function (81% vs 79%; P = 0.88) and with motor function two or more levels better than expected based on the anatomical level of the lesion (62% vs 74%; P = 0.24). When compared with prenatally repaired cases, postnatally repaired cases showed worse motor function at birth (S1 (L1-S1) vs L4 (L1-S1); P < 0.01) and at 12 months of age (S1 (L1-S1) vs L4 (L1-S1); P < 0.01). In the prenatal-repair group, motor function remained stable from the time of referral to 12 months of age (P = 0.26). Furthermore, the proportion of patients with intact motor function at referral (81% (75/93)) was similar to that at the 6-week follow-up (74% (64/87)), at the last scan before birth (74% (42/57)), at birth (68% (63/93)) and at 12 months of age (67% (39/58)) in the prenatal-repair group. In the postnatal-repair group, worse motor function, starting from the third trimester to 12 months of age, was observed. The proportion of patients with intact motor function at referral (79% (27/34)) was similar to that at 6-week follow-up (80% (12/15); P = 0.92), but was lower at the last assessment before birth (25% (2/8); P < 0.01), at birth (24% (8/34); P < 0.01) and at 12 months of age (28% (7/25); P < 0.01). Similar findings were noted when assessing the evolution of the proportion of cases with motor function two or more levels better than expected based on the anatomical level of the lesion in each group. CONCLUSIONS Infants with ONTD that underwent postnatal repair had worse motor function at birth and at 12 months of age than at mid-gestation and when compared with infants that underwent prenatal ONTD repair. Prenatal motor function assessment by ultrasound is an adequate tool to identify those infants who should have a good clinical motor function after delivery. Information obtained by fetal motor function assessment can have an important role for patient counseling and case selection for surgery. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- R Corroenne
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M Yepez
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M Pyarali
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - K Fox
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - J M Mastrobattista
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - L M Mack
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - W Lee
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - W E Whitehead
- Department of Neurosurgery, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - H A Castillo
- Department of Developmental Pediatrics, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - J Castillo
- Department of Developmental Pediatrics, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - A R Mehollin-Ray
- E. B. Singleton Department of Pediatric Radiology, Texas Children's Hospital & Department of Radiology, Baylor College of Medicine, Houston, TX, USA
| | - J Espinoza
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - A A Shamshirsaz
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - A A Nassr
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M A Belfort
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M Sanz Cortes
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
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Lundy P, Vlastos E, Domino J, Mitchell GS, Fickenscher K, Grabb P. Ventricular size measurement methods in fetuses considered for prenatal closure of myelomeningocele. J Neurosurg Pediatr 2021; 28:147-151. [PMID: 34049276 DOI: 10.3171/2020.12.peds20609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 12/08/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Prenatal closure of myelomeningocele is associated with a reduced rate of hydrocephalus treatment. This need for hydrocephalus treatment is positively correlated with fetal ventricular width. When ventricular width is 15 mm or greater, the benefits of prenatal closure, as a method to decrease hydrocephalus treatment, are reduced. Thus, fetal ventricular size is an important factor when counseling families who are considering intrauterine surgery with mitigation of hydrocephalus as the primary goal. This study sought to determine whether imaging modality (ultrasound [US] vs MRI) and interobserver variability were factors in any ventricular size disparity seen on imaging studies. METHODS The imaging studies of 15 consecutive fetuses who underwent prenatal myelomeningocele repair at Children's Mercy Fetal Health Center, Kansas City, Missouri, were reviewed. All fetuses were imaged with US and fetal MRI; on average (range), procedures were performed 3.8 (0-20) days apart. Three comparisons were performed to analyze interobserver and intermodality variability in ventricular width measurements: 1) retrospective comparison of dictated ventricular widths measured with MRI and US by pediatric radiologists (PRs) and maternal-fetal medicine specialists (MFMs), respectively; 2) blinded measurements obtained with US by PRs versus initial US-based measurements by MFMs, and blinded measurements obtained with MRI by PRs versus initial MRI-based measurements by PRs; and 3) blinded measurements obtained with MRI by PRs versus those obtained with US. RESULTS Retrospective comparison showed that measurements with MRI by PRs were on average 2.06 mm (95% CI 1.43-2.69, p < 0.001) larger than measurements with US by MFMs. Blinded measurements with US by PRs were on average larger than dictated measurements obtained with US by MFMs, but by only 0.6 mm (95% CI 0.31-0.84, p < 0.001). When PRs measured ventricular size in a blinded fashion with both US and MRI, the mean width determined with MRI was significantly larger by 2.0 mm (95% CI 1.26-2.67, p < 0.0001). CONCLUSIONS The ventricular width of these fetuses was larger when measured with MRI than US by an amount that could impact recommendations for fetal surgery. Every center involved in counseling families about the risks and benefits of fetal intervention for spina bifida needs to be aware of these possible imaging-based disparities.
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Affiliation(s)
- Paige Lundy
- 1Department of Neurological Surgery, University of Kansas, Kansas City, Kansas
| | | | - Joseph Domino
- 1Department of Neurological Surgery, University of Kansas, Kansas City, Kansas
| | | | | | - Paul Grabb
- 1Department of Neurological Surgery, University of Kansas, Kansas City, Kansas
- 4Neurosurgery, Children's Mercy Hospital, Kansas City, Missouri; and
- 5University of Missouri at Kansas City, Missouri
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Fons K, Jnah AJ. Arnold-Chiari Malformation: Core Concepts. Neonatal Netw 2021; 40:313-320. [PMID: 34518383 DOI: 10.1891/11-t-704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2020] [Indexed: 11/25/2022]
Abstract
Arnold-Chiari malformation (ACM), a defect that involves downward displacement of the hindbrain and herniation of the cerebellar vermis, tonsils, pons, medulla, and fourth ventricle through the foramen magnum, is the most complex of the 4 types of Chiari malformations. Unique to the other types of Chiari malformations, approximately 95 percent of infants with ACM also present with an associated myelomeningocele (MMC), the most severe form of spina bifida. Among affected infants, those with symptomatic comorbidities incur a significantly higher morbidity and mortality risk. Prompt identification and diagnosis of ACM, as well as evidence-based postnatal and postsurgical nursing and medical care, is critical. Early surgical intervention can repair an existing MMC and restore proper cerebrospinal fluid circulation, which can dramatically improve patient outcomes and quality of life, and reduce disease and health care burden.
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Abstract
Congenital malformations occur in about 3% of all live births and are a leading cause of perinatal morbidity and mortality. An evolving understanding of the developing human fetus, advances in imaging, availability of cutting-edge instrumentation, and enhanced understanding of fetal pathophysiology, have allowed for prenatal surgical interventions to improve fetal diseases and neonatal outcomes. Fetal surgical therapy is no longer restricted to life-threatening prenatal diagnoses and can be categorized into either open surgical techniques or minimally invasive endoscopic/ultrasound-guided techniques. Patient selection requires a thorough multidisciplinary evaluation and shared decision-making process.
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Corroenne R, Zarutskie A, Guimaraes C, Yepez M, Torres P, Shetty A, Lee W, Espinoza J, Shamshirsaz AA, Nassr AA, Belfort M, Whitehead W, Sanz Cortes M. Is ventriculomegaly and hindbrain herniation seen before and after prenatal neural tube defect repair associated with a worse functional level than anatomical level at birth? Prenat Diagn 2021; 41:972-982. [PMID: 34176146 DOI: 10.1002/pd.6000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 04/01/2021] [Accepted: 05/29/2021] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To determine if the evaluation of the fetal ventricular system and hindbrain herniation (HBH) is associated with motor outcome at birth in prenatally repaired open neural tube defect (NTD). METHODS Retrospective cohort study of 47 patients with NTD who underwent prenatal repair (17 fetoscopic; 30 open-hysterotomy). At referral and 6 weeks postoperatively, the degree of HBH, ventricular atrial widths and ventricular volume were evaluated by MRI. Head circumference and ventricular atrial widths were measured on ultrasound at referral and during the last ultrasound before delivery. Anatomic level of the lesion (LL) was determined based on the upper bony spinal defect detected by ultrasound. We considered the functional level as worse than anatomical level at birth when the motor level was equal or worse than the anatomical LL. RESULTS 26% (12/47) of the cases showed worse functional level than anatomical level at birth. Having a HBH below C1 at the time of referral was associated with a worse functional level than anatomical level at birth (OR = 9.7, CI95 [2.2-42.8], p < 0.01). None of the other brain parameters showed a significant association with motor outcomes at birth. CONCLUSIONS HBH below C1 before surgery was associated with a worse functional level than anatomical level at birth.
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Affiliation(s)
- Romain Corroenne
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
| | - Alexander Zarutskie
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
| | - Carolina Guimaraes
- Department of Radiology, Texas Children's Hospital, Houston, Texas, USA.,Department of Radiology, Lucile Packard Children's Hospital, Stanford School of Medicine, Palo Alto, California, USA
| | - Mayel Yepez
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
| | - Paola Torres
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
| | - Anil Shetty
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
| | - Wesley Lee
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
| | - Jimmy Espinoza
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
| | - Alireza A Shamshirsaz
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
| | - Ahmed A Nassr
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
| | - Michael Belfort
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
| | - William Whitehead
- Department of Neurosurgery, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
| | - Magdalena Sanz Cortes
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, Texas, USA
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Diffusion weighted imaging as a biomarker of retinoic acid induced myelomeningocele. PLoS One 2021; 16:e0253583. [PMID: 34191842 PMCID: PMC8244849 DOI: 10.1371/journal.pone.0253583] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/08/2021] [Indexed: 12/16/2022] Open
Abstract
Neural tube defects are a common congenital anomaly involving incomplete closure of the spinal cord. Myelomeningocele (MMC) is a severe form in which there is complete exposure of neural tissue with a lack of skin, soft tissue, or bony covering to protect the spinal cord. The all-trans retinoic acid (ATRA) induced rat model of (MMC) is a reproducible, cost-effective means of studying this disease; however, there are limited modalities to objectively quantify disease severity, or potential benefits from experimental therapies. We sought to determine the feasibility of detecting differences between MMC and wild type (WT) rat fetuses using diffusion magnetic resonance imaging techniques (MRI). Rat dams were gavage-fed ATRA to produce MMC defects in fetuses, which were surgically delivered prior to term. Average diffusion coefficient (ADC) and fractional anisotropy (FA) maps were obtained for each fetus. Brain volumes and two anatomically defined brain length measurements (D1 and D2) were significantly decreased in MMC compared to WT. Mean ADC signal was significantly increased in MMC compared to WT, but no difference was found for FA signal. In summary, ADC and brain measurements were significantly different between WT and MMC rat fetuses. ADC could be a useful complementary imaging biomarker to current histopathologic analysis of MMC models, and potentially expedite therapeutic research for this disease.
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Stokes SC, Jackson JE, Theodorou CM, Pivetti CD, Kumar P, Yamashiro KJ, Wang A, Farmer DL. A Novel Model of Fetal Spinal Cord Exposure Allowing for Long-Term Postnatal Survival. Fetal Diagn Ther 2021; 48:472-478. [PMID: 34111873 DOI: 10.1159/000516542] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 04/07/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND The inherent morbidity associated with fetal ovine models of myelomeningocele (MMC) has created challenges for long-term survival of lambs. We aimed to develop a fetal ovine surgical spinal exposure model which could be used to evaluate long-term safety after direct spinal cord application of novel therapeutics for augmentation of in utero MMC repair. METHODS At gestational age (GA) 100-106, fetal lambs underwent surgical intervention. Laminectomy of L5-L6 was performed, dura was removed, and an experimental product was directly applied to the spinal cord. Paraspinal muscles and skin were closed and the fetus was returned to the uterus. Lambs were delivered via cesarean section at GA 140-142. Lambs were survived for 3 months with regular evaluation of motor function by the sheep locomotor rating scale. Spinal angulation was evaluated by magnetic resonance imaging at 2 weeks and 3 months. RESULTS Five fetal surgical intervention lambs and 6 control lambs who did not undergo surgical intervention were included. All lambs survived to the study endpoint of 3 months. No lambs had motor function abnormalities or increased spinal angulation. CONCLUSION This model allows for long-term survival after fetal spinal cord exposure with product application directly onto the spinal cord.
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Affiliation(s)
- Sarah C Stokes
- Department of Surgery, University of California-Davis, Sacramento, California, USA
| | - Jordan E Jackson
- Department of Surgery, University of California-Davis, Sacramento, California, USA
| | | | - Christopher D Pivetti
- Department of Biomedical Engineering, University of California-Davis, Davis, California, USA
| | - Priyadarsini Kumar
- Department of Biomedical Engineering, University of California-Davis, Davis, California, USA
| | - Kaeli J Yamashiro
- Department of Surgery, University of California-Davis, Sacramento, California, USA
| | - Aijun Wang
- Department of Surgery, University of California-Davis, Sacramento, California, USA.,Department of Biomedical Engineering, University of California-Davis, Davis, California, USA
| | - Diana L Farmer
- Department of Surgery, University of California-Davis, Sacramento, California, USA.,Shriners Hospital for Children Northern California, Sacramento, California, USA
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Abstract
PURPOSE OF REVIEW To review the advance of maternal--fetal surgery, the research of stem cell transplantation and tissue engineering in prenatal management of fetal meningomyelocele (fMMC). RECENT FINDINGS Advance in the imaging study provides more accurate assessment of fMMC in utero. Prenatal maternal--fetal surgery in fMMC demonstrates favourable postnatal outcome. Minimally invasive fetal surgery minimizes uterine wall disruption. Endoscopic fetal surgery is performed via laparotomy-assisted or entirely percutaneous approach. The postnatal outcome for open and endoscopic fetal surgery shares no difference. Single layer closure during repair of fMMC is preferred to reduce postnatal surgical intervention. All maternal--fetal surgeries impose anesthetic and obstetric risk to pregnant woman. Ruptured of membrane and preterm delivery are common complications. Trans-amniotic stem cell therapy (TRASCET) showed potential tissue regeneration in animal models. Fetal tissue engineering with growth factors and dura substitutes with biosynthetic materials promote spinal cord regeneration. This will overcome the challenge of closure in large fMMC. Planning of the maternal--fetal surgery should adhere to ethical framework to minimize morbidity to both fetus and mother. SUMMARY Combination of endoscopic fetal surgery with TRASCET or tissue engineering will be a new vision to achieve to improve the outcome of prenatal intervention in fMMC.
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Bardill JR, Williams SM, Laughter MR, Park D, Marwan AI. Evaluation of scaffolding, inflammatory response, and wound healing support of a reverse thermal gel for myelomeningocele patching. J Appl Polym Sci 2021. [DOI: 10.1002/app.50013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- James R. Bardill
- Department of Bioengineering University of Colorado Denver Anschutz Medical Campus Aurora Colorado USA
- Division of Pediatric Surgery, Department of Surgery University of Colorado Denver Anschutz Medical Campus Aurora Colorado USA
| | - Sarah M. Williams
- Division of Pediatric Surgery, Department of Surgery University of Colorado Denver Anschutz Medical Campus Aurora Colorado USA
| | - Melissa R. Laughter
- Department of Bioengineering University of Colorado Denver Anschutz Medical Campus Aurora Colorado USA
| | - Daewon Park
- Department of Bioengineering University of Colorado Denver Anschutz Medical Campus Aurora Colorado USA
| | - Ahmed I. Marwan
- Department of Surgery University of Colorado, Anschutz medical campus Aurora Colorado USA
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Moussa M, Papatsoris AG, Chakra MA, Fares Y, Dabboucy B, Dellis A. Perspectives on urological care in spina bifida patients. Intractable Rare Dis Res 2021; 10:1-10. [PMID: 33614369 PMCID: PMC7882087 DOI: 10.5582/irdr.2020.03077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/04/2020] [Accepted: 12/12/2020] [Indexed: 02/05/2023] Open
Abstract
Spina bifida (SB) is a neurogenetic disorder with a complex etiology that involves genetic and environmental factors. SB can occur in two major forms of open SB or SB aperta and closed SB or SB occulta. Myelomeningocele (MMC), the most common neural tube defects (NTDs), occurs in approximately 1 in 1,000 births. Considering non-genetic factors, diminished folate status is the best-known factor influencing NTD risk. The methylenetetrahydrofolate reductase (MTHFR) gene has been implicated as a risk factor for NTDs. The primary disorder in the pathogenesis of MMC is failed neural tube closure in the embryonic spinal region. The clinical manifestation of SB depends on clinical type and severity. SB can be detected in the second trimester using ultrasound which will reveal specific cranial signs. The management of MMC traditionally involves surgery within 48 h of birth. Prenatal repair of MMC is recommended for fetuses who meet maternal and fetal Management of Myelomeningocele Study (MOMS) specified criteria. Urological manifestations of SB include urinary incontinence, urolithiasis, sexual dysfunction, renal dysfunction, and urinary tract infection. Renal failure is among the most severe complications of SB. The most important role of the urologist is the management of neurogenic bladder. Medical management with clean intermittent catheterization and anticholinergic treatment is generally considered the gold standard of therapy. However, when this therapy fails surgical reconstruction become the only remaining option. This review will summarize the pathogenesis, risk factors, genetic contribution, diagnostic test, and management of SB. Lastly, the urologic outcomes and therapies are reviewed.
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Affiliation(s)
- Mohamad Moussa
- Urology Department, Zahraa Hospital, University Medical Center, Lebanese University, Beirut, Lebanon
| | - Athanasios G. Papatsoris
- 2nd Department of Urology, School of Medicine, Sismanoglio Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Mohamad Abou Chakra
- Department of Urology, Faculty of Medicine, Lebanese University, Beirut, Lebanon
| | - Youssef Fares
- Department of Neurosurgery, Neuroscience Research Center, Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon
| | - Baraa Dabboucy
- Department of Neurosurgery, Faculty of Medicine, Lebanese University, Beirut, Lebanon
| | - Athanasios Dellis
- Department of Urology/General Surgery, Areteion Hospital, Athens, Greece
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Scher MS. "The First Thousand Days" Define a Fetal/Neonatal Neurology Program. Front Pediatr 2021; 9:683138. [PMID: 34408995 PMCID: PMC8365757 DOI: 10.3389/fped.2021.683138] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/27/2021] [Indexed: 01/11/2023] Open
Abstract
Gene-environment interactions begin at conception to influence maternal/placental/fetal triads, neonates, and children with short- and long-term effects on brain development. Life-long developmental neuroplasticity more likely results during critical/sensitive periods of brain maturation over these first 1,000 days. A fetal/neonatal program (FNNP) applying this perspective better identifies trimester-specific mechanisms affecting the maternal/placental/fetal (MPF) triad, expressed as brain malformations and destructive lesions. Maladaptive MPF triad interactions impair progenitor neuronal/glial populations within transient embryonic/fetal brain structures by processes such as maternal immune activation. Destructive fetal brain lesions later in pregnancy result from ischemic placental syndromes associated with the great obstetrical syndromes. Trimester-specific MPF triad diseases may negatively impact labor and delivery outcomes. Neonatal neurocritical care addresses the symptomatic minority who express the great neonatal neurological syndromes: encephalopathy, seizures, stroke, and encephalopathy of prematurity. The asymptomatic majority present with neurologic disorders before 2 years of age without prior detection. The developmental principle of ontogenetic adaptation helps guide the diagnostic process during the first 1,000 days to identify more phenotypes using systems-biology analyses. This strategy will foster innovative interdisciplinary diagnostic/therapeutic pathways, educational curricula, and research agenda among multiple FNNP. Effective early-life diagnostic/therapeutic programs will help reduce neurologic disease burden across the lifespan and successive generations.
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Affiliation(s)
- Mark S Scher
- Division of Pediatric Neurology, Department of Pediatrics, Fetal/Neonatal Neurology Program, Emeritus Scholar Tenured Full Professor in Pediatrics and Neurology, Case Western Reserve University School of Medicine, Cleveland, OH, United States
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Aina TAO, Zhu H, Kim J, Wiafe KA, Nassr AA, Olutoye OA. Anesthesia-Related Factors Associated with Preterm Labor and Delivery after Open Fetal Surgery. Fetal Diagn Ther 2020; 48:50-57. [PMID: 33279907 DOI: 10.1159/000511474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/09/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Fetal surgery, such as for meningomyelocele repair, has a clear clinical fetal benefit. In patients who undergo in utero repair of meningomyelocele, for example, there is reduced long-term disease morbidity. However, despite the beneficial effects of early intervention, women who undergo fetal interventions have an increased risk of preterm labor and delivery. Several surgery-related factors have been described but no specific anesthesia-related factors. OBJECTIVE The aim of this study was to determine if any aspects of the perioperative anesthetic management influenced maternal complications following in utero surgery. METHODS This was a retrospective chart review of the anesthetic management of mothers and fetuses who presented for open and fetoscopic myelomeningocele repair, between 2011 and 2015, at Texas Children's Fetal Center®. RESULTS Forty-six women underwent open or fetoscopic repair of neural tube defects at our institution. We found the maternal heart rate in the postoperative period to be associated with a higher likelihood of preterm labor, but not delivery. The odds of having preterm delivery was higher for nulliparous patients and those with lower intraoperative diastolic pressure. CONCLUSIONS Our findings confirm what has been previously reported regarding the association of nulliparity with preterm delivery. Additionally, this study highlights the importance of maintaining stable perioperative hemodynamics during the intraoperative and postoperative phases of care for patients undergoing in utero surgery.
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Affiliation(s)
- Titilopemi A O Aina
- Department of Anesthesiology, Perioperative and Pain Medicine, Baylor College of Medicine/Texas Children's Hospital, Houston, Texas, USA,
| | - Huirong Zhu
- Outcomes and Impact Service, Texas Children's Hospital, Houston, Texas, USA
| | - Jonathan Kim
- Department of Anesthesiology and Perioperative Medicine, UCLA Health, University of California, Los Angeles, California, USA
| | | | - Ahmed A Nassr
- Department of Obstetrics and Gynecology, Baylor College of Medicine/Texas Children's Hospital, Houston, Texas, USA
| | - Olutoyin A Olutoye
- Department of Anesthesiology, Perioperative and Pain Medicine, Baylor College of Medicine/Texas Children's Hospital, Houston, Texas, USA
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Prenatal and Postnatal Imaging Findings After Fetal Repair of Spinal Dysraphisms Using Cryopreserved Human Umbilical Cord Patch: A Case Series of 4 Patients. J Comput Assist Tomogr 2020; 44:998-1007. [PMID: 32976267 DOI: 10.1097/rct.0000000000001060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We describe a case series of imaging findings of 4 patients who underwent spinal dysraphisms repair in utero with novel patch material, cryopreserved human umbilical cord, in our institution. In our study, the prenatal and postnatal magnetic resonance imaging and ultrasound are reviewed and showed cord tethering and syrinx progression in all cases. Our report is the first description of magnetic resonance imaging and ultrasound findings in the context of using this novel patch in severe cases of spinal dysraphisms.
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Abstract
Open-uterine surgery to repair spina bifida, or 'fetal surgery of open neural tube defects,' has generated questions throughout its history-and continues to do so in a variety of contexts. As clinical ethics consultants who worked (Mark J. Bliton) and trained (Virginia L. Bartlett) at Vanderbilt University-where the first successful cases of open-uterine repair of spina bifida were carried out-we lived with these questions for nearly two decades. We worked with clinicians as they were developing and offering the procedure, with researchers in refining and studying the procedure, and with pregnant women and their partners as they considered whether to undergo the procedure. From this experience in the early studies at Vanderbilt, we learned that pregnant women and their partners approach the clinical uncertainty of such a risky procedure with a curious and unique combination of practicality, self-reflection, fear, and overwhelming hope. These early experiences were a major contributing factor to the inclusion of an ethics-focused interview in the informed consent process for the Management of Myelomeningocele Study (MOMS) trial study design.
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45
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Corroenne R, Yepez M, Pyarali M, Johnson RM, Whitehead WE, Castillo HA, Castillo J, Mehollin-Ray AR, Espinoza J, Shamshirsaz AA, Nassr AA, Belfort MA, Cortes MS. Prenatal predictors of motor function in children with open spina bifida: a retrospective cohort study. BJOG 2020; 128:384-391. [PMID: 32975898 DOI: 10.1111/1471-0528.16538] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To identify predictors for intact motor function (MF) at birth and at 12 months of life in babies with prenatally versus postnatally repaired open spina bifida (OSB). DESIGN Retrospective cohort study. SETTING Texas Children's Hospital, 2011-2018. POPULATION Patients who underwent either prenatal or postnatal OSB repair. METHODS Prenatal MF of the lower extremities was evaluated by ultrasound following a metameric distribution at the time of diagnosis (US1), 6 weeks postoperatively (or 6 weeks after initial evaluation in postnatally repaired cases) (US2) and at the last ultrasound before delivery (US3). At birth and at 12 months, MF was assessed clinically. Intact MF (S1) was defined as the observation of plantar flexion of the ankle. Results from logistic regression analysis are expressed as odds ratios (95% confidence intervals, P values). RESULTS A total of 127 patients were included: 93 with prenatal repair (51 fetoscopic; 42 open hysterotomy repair) and 34 with postnatal repair. In the prenatal repair group, predictors for intact MF at birth and at 12 months included: absence of clubfeet (OR 11.3, 95% CI 3.2-39.1, P < 0.01; OR 10.8 95% CI 2.4-47.6, P < 0.01); intact MF at US1 (OR 19.7, 95% CI 5.0-76.9, P < 0.01; OR 8.7, 95% CI 2.0-38.7, P < 0.01); intact MF at US2 (OR 22, 95% CI 6.5-74.2, P < 0.01; OR 13.5, 95% 3.0-61.4, P < 0.01); intact MF at US3 (OR 13.7, 95% CI 3.4-55.9, P < 0.01; OR 12.6, 95% CI 2.5-64.3, P < 0.01); and having a flat lesion (OR 11.2, 95% CI 2.4-51.1, P < 0.01; OR 4.1, 95% CI 1.1-16.5, P = 0.04). In the postnatal repair group, the only predictor of intact MF at 12 months was having intact MF at birth (OR 15.2, 95% CI 2.0-113.3, P = 0.03). CONCLUSIONS The detection of intact MF in utero from mid-gestation to delivery predicts intact MF at birth and at 12 months in babies who undergo prenatal OSB repair. TWEETABLE ABSTRACT Detection of intact motor function in utero predicts intact motor function at birth and at 1 year in fetuses who undergo prenatal OSB repair.
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Affiliation(s)
- R Corroenne
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M Yepez
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M Pyarali
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - R M Johnson
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - W E Whitehead
- Department of Neurosurgery, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - H A Castillo
- Department of Pediatrics, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - J Castillo
- Department of Pediatrics, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - A R Mehollin-Ray
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA.,Department of Radiology, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - J Espinoza
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - A A Shamshirsaz
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - A A Nassr
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M A Belfort
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M S Cortes
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
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Corroenne R, Yepez M, Barth J, Pan E, Whitehead WE, Espinoza J, Shamshirsaz AA, Nassr AA, Belfort MA, Sanz Cortes M. Chorioamniotic membrane separation following fetal myelomeningocele repair: incidence, risk factors and impact on perinatal outcome. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2020; 56:684-693. [PMID: 31841246 DOI: 10.1002/uog.21947] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES Prenatal myelomeningocele (MMC) repair has been shown to provide significant benefits to the infant, decreasing the postnatal need for ventriculoperitoneal shunt and improving motor outcome. Chorioamniotic membrane separation (CAS) is a potential complication following prenatal MMC repair and may increase the risk of preterm prelabor rupture of membranes (PPROM) and preterm birth. The objectives of this study were: (1) to evaluate the incidence of CAS after prenatal MMC repair; (2) to determine risk factors associated with its occurrence; and (3) to assess its association with adverse perinatal outcomes. METHODS This was a retrospective cohort study of patients who underwent fetal MMC repair between November 2011 and December 2018. Surgery was performed using either a fetoscopic (laparotomy or exteriorized uterus) approach or an open-hysterotomy approach. Eligibility criteria were those reported in the Management of Myelomeningocele Study. If CAS was detected on ultrasound (US), its severity was graded as 'mild' if amnion detachment involved < 25% of the uterine cavity, 'moderate' if it involved 25-50% and 'severe' if it involved > 50%. Evolution of CAS was classified as stable, increasing or decreasing based on the difference in severity grading between the time at first diagnosis and the last US scan before delivery. Logistic regression analysis was performed to identify pre- or perisurgical factors associated with the development of CAS and to determine the risk of adverse perinatal outcome associated with CAS. RESULTS In total, 91 cases were included. Fetoscopic or open-hysterotomy repair of MMC was performed in 52/91 (57.1%) and 39/91 (42.9%) cases, at a median gestational age (GA) of 25.0 weeks (range, 22.9-26.0 weeks) and 25.0 weeks (range, 21.3-25.9 weeks), respectively. CAS was diagnosed in 31/91 (34.1%) patients, at a median GA of 28.1 weeks (range, 24.4-37.6 weeks). Anterior placenta was identified as a risk factor for the postoperative development of CAS (odds ratio (OR), 3.72 (95% CI, 1.46-9.5); P < 0.01). This risk was dependent on the repair technique. An anterior placenta significantly increased the risk of CAS after fetoscopic repair (OR, 3.94 (95% CI, 1.14-13.6); P = 0.03) but not after open repair (OR, 2.8 (95% CI, 0.6-12.5); P = 0.16). There was no significant difference in the rate of CAS after fetoscopic repair (21/52 (40.4%)) vs open-hysterotomy repair (10/39 (25.6%)) (P = 0.14), nor were there any differences in GA at diagnosis of CAS, interval between surgery and diagnosis, distribution of CAS severity or progression of CAS between the two groups. CAS increased the risk of PPROM (50% in those with vs 12% in those without CAS) (OR, 7.6 (95% CI, 2.5-21.9); P < 0.01) and preterm delivery (70% vs 38%) (OR, 3.2 (95% CI, 1.3-8.1); P < 0.01). Fetoscopically repaired cases with CAS had a higher rate of PPROM (12/20 (60.0%) vs 2/31 (6.5%); P < 0.01) and preterm delivery (13/20 (65.0%) vs 5/31 (16.1%); P < 0.01) than those that did not develop CAS, while the differences were not significant in cases with open-hysterotomy repair. Early detection of CAS (before 30 weeks' gestation) was a risk factor for preterm delivery (90% before 30 weeks vs 36% at or after 30 weeks) (OR, 15.7 (95% CI, 2.3-106.3); P < 0.01). There was no association between PPROM or preterm delivery and the severity or progression of CAS. CONCLUSIONS The presence of an anterior placenta was the only factor that increased the risk for CAS after fetoscopic MMC repair. Detection of CAS after fetoscopic MMC repair significantly increases the risk for PPROM and preterm delivery. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- R Corroenne
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M Yepez
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - J Barth
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - E Pan
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - W E Whitehead
- Department of Neurosurgery, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - J Espinoza
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - A A Shamshirsaz
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - A A Nassr
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M A Belfort
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
| | - M Sanz Cortes
- Department of Obstetrics & Gynecology, Division of Maternal-Fetal Medicine, Baylor College of Medicine & Texas Children's Hospital, Houston, TX, USA
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Didier RA, Martin-Saavedra JS, Oliver ER, DeBari SE, Bilaniuk LT, Howell LJ, Moldenhauer JS, Adzick NS, Heuer GG, Coleman BG. Fetal Intraventricular Hemorrhage in Open Neural Tube Defects: Prenatal Imaging Evaluation and Perinatal Outcomes. AJNR Am J Neuroradiol 2020; 41:1923-1929. [PMID: 32943419 DOI: 10.3174/ajnr.a6745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 06/16/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND PURPOSE Fetal imaging is crucial in the evaluation of open neural tube defects. The identification of intraventricular hemorrhage prenatally has unclear clinical implications. We aimed to explore fetal imaging findings in open neural tube defects and evaluate associations between intraventricular hemorrhage with prenatal and postnatal hindbrain herniation, postnatal intraventricular hemorrhage, and ventricular shunt placement. MATERIALS AND METHODS After institutional review board approval, open neural tube defect cases evaluated by prenatal sonography between January 1, 2013 and April 24, 2018 were enrolled (n = 504). The presence of intraventricular hemorrhage and gray matter heterotopia by both prenatal sonography and MR imaging studies was used for classification. Cases of intraventricular hemorrhage had intraventricular hemorrhage without gray matter heterotopia (n = 33) and controls had neither intraventricular hemorrhage nor gray matter heterotopia (n = 229). A total of 135 subjects with findings of gray matter heterotopia were excluded. Outcomes were compared with regression analyses. RESULTS Prenatal and postnatal hindbrain herniation and postnatal intraventricular hemorrhage were more frequent in cases of prenatal intraventricular hemorrhage compared with controls (97% versus 79%, 50% versus 25%, and 63% versus 12%, respectively). Increased third ventricular diameter, specifically >1 mm, predicted hindbrain herniation (OR = 3.7 [95% CI, 1.5-11]) independent of lateral ventricular size and prenatal intraventricular hemorrhage. Fetal closure (n = 86) was independently protective against postnatal hindbrain herniation (OR = 0.04 [95% CI, 0.01-0.15]) and postnatal intraventricular hemorrhage (OR = 0.2 [95% CI, 0.02-0.98]). Prenatal intraventricular hemorrhage was not associated with ventricular shunt placement. CONCLUSIONS Intraventricular hemorrhage is relatively common in the prenatal evaluation of open neural tube defects. Hindbrain herniation is more common in cases of intraventricular hemorrhage, but in association with increased third ventricular size. Fetal closure reverses hindbrain herniation and decreases the rate of intraventricular hemorrhage postnatally, regardless of the presence of prenatal intraventricular hemorrhage.
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Affiliation(s)
- R A Didier
- Department of Radiology (R.A.D., J.S.M-S., E.R.O., S.E.D., L.T.B., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Center for Fetal Diagnosis and Treatment (R.A.D., E.R.O., S.E.D., L.T.B., L.J.H., J.S.M., N.S.A., G.G.H., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Perelman School of Medicine (R.A.D., E.R.O., L.T.B., J.S.M., N.S.A., G.G.H., B.G.C.), University of Pennsylvania, Philadelphia, Pennsylvania
| | - J S Martin-Saavedra
- Department of Radiology (R.A.D., J.S.M-S., E.R.O., S.E.D., L.T.B., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - E R Oliver
- Department of Radiology (R.A.D., J.S.M-S., E.R.O., S.E.D., L.T.B., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Center for Fetal Diagnosis and Treatment (R.A.D., E.R.O., S.E.D., L.T.B., L.J.H., J.S.M., N.S.A., G.G.H., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Perelman School of Medicine (R.A.D., E.R.O., L.T.B., J.S.M., N.S.A., G.G.H., B.G.C.), University of Pennsylvania, Philadelphia, Pennsylvania
| | - S E DeBari
- Department of Radiology (R.A.D., J.S.M-S., E.R.O., S.E.D., L.T.B., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Center for Fetal Diagnosis and Treatment (R.A.D., E.R.O., S.E.D., L.T.B., L.J.H., J.S.M., N.S.A., G.G.H., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - L T Bilaniuk
- Department of Radiology (R.A.D., J.S.M-S., E.R.O., S.E.D., L.T.B., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Center for Fetal Diagnosis and Treatment (R.A.D., E.R.O., S.E.D., L.T.B., L.J.H., J.S.M., N.S.A., G.G.H., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Perelman School of Medicine (R.A.D., E.R.O., L.T.B., J.S.M., N.S.A., G.G.H., B.G.C.), University of Pennsylvania, Philadelphia, Pennsylvania
| | - L J Howell
- Center for Fetal Diagnosis and Treatment (R.A.D., E.R.O., S.E.D., L.T.B., L.J.H., J.S.M., N.S.A., G.G.H., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Surgery (L.J.H., J.S.M., N.S.A., G.G.H.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - J S Moldenhauer
- Center for Fetal Diagnosis and Treatment (R.A.D., E.R.O., S.E.D., L.T.B., L.J.H., J.S.M., N.S.A., G.G.H., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Perelman School of Medicine (R.A.D., E.R.O., L.T.B., J.S.M., N.S.A., G.G.H., B.G.C.), University of Pennsylvania, Philadelphia, Pennsylvania
- Department of Surgery (L.J.H., J.S.M., N.S.A., G.G.H.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - N S Adzick
- Center for Fetal Diagnosis and Treatment (R.A.D., E.R.O., S.E.D., L.T.B., L.J.H., J.S.M., N.S.A., G.G.H., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Perelman School of Medicine (R.A.D., E.R.O., L.T.B., J.S.M., N.S.A., G.G.H., B.G.C.), University of Pennsylvania, Philadelphia, Pennsylvania
- Department of Surgery (L.J.H., J.S.M., N.S.A., G.G.H.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - G G Heuer
- Center for Fetal Diagnosis and Treatment (R.A.D., E.R.O., S.E.D., L.T.B., L.J.H., J.S.M., N.S.A., G.G.H., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Perelman School of Medicine (R.A.D., E.R.O., L.T.B., J.S.M., N.S.A., G.G.H., B.G.C.), University of Pennsylvania, Philadelphia, Pennsylvania
- Department of Surgery (L.J.H., J.S.M., N.S.A., G.G.H.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - B G Coleman
- Department of Radiology (R.A.D., J.S.M-S., E.R.O., S.E.D., L.T.B., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Center for Fetal Diagnosis and Treatment (R.A.D., E.R.O., S.E.D., L.T.B., L.J.H., J.S.M., N.S.A., G.G.H., B.G.C.), The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Perelman School of Medicine (R.A.D., E.R.O., L.T.B., J.S.M., N.S.A., G.G.H., B.G.C.), University of Pennsylvania, Philadelphia, Pennsylvania
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Foss S, Flanders TM, Heuer GG, Schreiber JE. Neurobehavioral outcomes in patients with myelomeningocele. Neurosurg Focus 2020; 47:E6. [PMID: 31574480 DOI: 10.3171/2019.7.focus19445] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 07/25/2019] [Indexed: 01/26/2023]
Abstract
This paper describes some of the more common patterns in neurobehavioral deficits and their underlying neuroanatomical basis in myelomeningocele (MMC). Patients with MMC can face a lifetime of specific organ system dysfunction, chief among them spinal cord malformations, orthopedic issues, hydrocephalus, and urological disabilities. In addition, patients can experience specific patterns of neurobehavioral difficulties due to the changes in neuroanatomy associated with the open spinal defect. Although there is variability in these patterns, some trends have been described among MMC patients. It is thought that early recognition of these potential neurobehavioral deficits by treating neurosurgeons and other members of the treatment team could lead to earlier intervention and positively impact the overall outcome for patients. Neurodevelopmental and neurobehavioral follow-up assessments are recommended to help guide planning for relevant treatments or accommodations.
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Affiliation(s)
- Sophie Foss
- 1Department of Child and Adolescent Psychiatry and Behavioral Sciences, and Divisions of
| | | | - Gregory G Heuer
- 2Neurosurgery and.,3Pediatric General, Thoracic and Fetal Surgery, Children's Hospital of Philadelphia, Pennsylvania
| | - Jane E Schreiber
- 1Department of Child and Adolescent Psychiatry and Behavioral Sciences, and Divisions of.,3Pediatric General, Thoracic and Fetal Surgery, Children's Hospital of Philadelphia, Pennsylvania
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49
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Management of myelomeningocele in the Caribbean; A plastic surgery perspective. JOURNAL OF PEDIATRIC SURGERY CASE REPORTS 2020. [DOI: 10.1016/j.epsc.2020.101554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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50
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Galganski LA, Kumar P, Vanover MA, Pivetti CD, Anderson JE, Lankford L, Paxton ZJ, Chung K, Lee C, Hegazi MS, Yamashiro KJ, Wang A, Farmer DL. In utero treatment of myelomeningocele with placental mesenchymal stromal cells - Selection of an optimal cell line in preparation for clinical trials. J Pediatr Surg 2020; 55:1941-1946. [PMID: 31672407 PMCID: PMC7170747 DOI: 10.1016/j.jpedsurg.2019.09.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 08/04/2019] [Accepted: 09/01/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND We determined whether in vitro potency assays inform which placental mesenchymal stromal cell (PMSC) lines produce high rates of ambulation following in utero treatment of myelomeningocele in an ovine model. METHODS PMSC lines were created following explant culture of three early-gestation human placentas. In vitro neuroprotection was assessed with a neuronal apoptosis model. In vivo, myelomeningocele defects were created in 28 fetuses and repaired with PMSCs at 3 × 105 cells/cm2 of scaffold from Line A (n = 6), Line B (n = 7) and Line C (n = 5) and compared to no PMSCs (n = 10). Ambulation was scored as ≥13 on the Sheep Locomotor Rating Scale. RESULTS In vitro, Line A and B had higher neuroprotective capability than no PMSCs (1.7 and 1.8 respectively vs 1, p = 0.02, ANOVA). In vivo, Line A and B had higher large neuron densities than no PMSCs (25.2 and 27.9 respectively vs 4.8, p = 0.03, ANOVA). Line C did not have higher neuroprotection or larger neuron density than no PMSCs. In vivo, Line A and B had ambulation rates of 83% and 71%, respectively, compared to 60% with Line C and 20% with no PMSCs. CONCLUSION The in vitro neuroprotection assay will facilitate selection of optimal PMSC lines for clinical use. LEVEL OF EVIDENCE n/a. TYPE OF STUDY Basic science.
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Affiliation(s)
- Laura A Galganski
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA.
| | - Priyadarsini Kumar
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA.
| | - Melissa A Vanover
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA.
| | - Christopher D Pivetti
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA; Shriners Hospitals for Children Northern California, 2425 Stockton Blvd, Sacramento, CA 95817, USA.
| | - Jamie E Anderson
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA.
| | - Lee Lankford
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA.
| | - Zachary J Paxton
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA.
| | - Karen Chung
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA.
| | - Chelsey Lee
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA.
| | - Mennatalla S Hegazi
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA.
| | - Kaeli J Yamashiro
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA.
| | - Aijun Wang
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA; Shriners Hospitals for Children Northern California, 2425 Stockton Blvd, Sacramento, CA 95817, USA.
| | - Diana L Farmer
- University of California-Davis, 4625 2nd Ave, Suite 3005, Sacramento, CA 95817, USA; Shriners Hospitals for Children Northern California, 2425 Stockton Blvd, Sacramento, CA 95817, USA.
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